I apologize for my late response, as I have been at work for the past 8 hours and have been unable to test out the various fixes that you all have mentioned.  I have managed to fix the problem with one suggestion, but I wish to thank you all for the support and report on testing the other fixes, and the end result.
@Emma,
I thank you for suggesting this, as it was something that escaped my mind completely.  Sadly, it did not fix the problem.  I tried waiting for the cell to reset, which I have set to 3 days, in both an inn and in the vampire testing cell (as there is a bed there.)  Both attempts made no progress, and Vilja seems to remain an adamant shopoholic, at least for the time being.  Regretably, I never posted my load order, which could have saved time to help pinpoint the problem.  Regardless the problem is now fixed, and your advice was not in vain,  so please read on if you so choose.
@Leonardo2,
I thank you for this suggestion, as it is something I would not have thought up of.  The only problem with this is that I currently use the newest UOP Supplemental fix, and have been regularly updating them as Arthmoor makes them available, so I am not sure if the bug this wonderful addon fixes is the true problem, as it is already.....  Fixed.  Sorry for that, and I will post my load order for reference, just in case.
@amgepo and Emma,
I must thank you and Emma for this, as this was the fix that remedied Vilja's "shop till you drop" complex.  After going to Colovian Traders and bringing Vilja to my PC via console command, everything went back to normal.  Granted, after I spoke with her and she bragged about the good deal she got buying 12 pairs of iron boots, there was a minor glitch after I exited the dialogue menu only to have her talk to me again, but I am sure this was just the script correcting itself.  A brilliant idea you two conceived, and I thank you for it.  I will still test this out for a while and see if there are any other discrepancies that I should report, but I believe Vilja is ready to continue her adventures in Cyrodiil.
I am honestly not sure why this persisted for so long, other than the fact that I fast traveled right after I told her to do the shopping.  I will try to allow the script time to get situated before I do something impulsive again.  I thank you all for your help, though I was not expecting to cause so much trouble.  I hope this is just an abberation I alone am experiencing, but if it is not then I hope that you, Emma, and CDCooley will find this resolution useful for anyone else.  I am happy to have contributed something to this fantastic project, and I wish you luck in the releas of ver 3.  I will post my load order now as a reference, just in case: 
	Spoiler 	Active Mod Files:00  Oblivion.esm01  underdark.esm02  GTAesgaard_2.esm03  Jog_X_Mod.esm04  All Natural Base.esm  [Version 1.0]05  Francesco's Leveled Creatures-Items Mod.esm  [Version 4.5bSI]06  Francesco's Optional New Items Add-On.esm  [Version 4.5bSI]07  Cobl Main.esm  [Version 1.73]08  Oscuro's_Oblivion_Overhaul.esm  [Version 1.34]09  Mart's Monster Mod.esm  [Version 3.7b3p3]0A  Enhanced Daedric Invasion.esm0B  TamrielTravellers.esm  [Version 1.39c]0C  FCOM_Convergence.esm  [Version 0.9.9MB3]0D  Armamentarium.esm  [Version 1.35]0E  Artifacts.esm  [Version 1.1]0F  BetterMusicSystem.esm10  Progress.esm  [Version 2.2]11  CM Partners.esm12  ShieldOnBack.esm  [Version 3.3]13  TRoN.esp**  TNR - ShiveringIsles.esp14  vampirescriptfix.esp++  DaedricHelmFIX.esp15  Unofficial Oblivion Patch.esp  [Version 3.3.2]16  DLCShiveringIsles.esp17  Unofficial Shivering Isles Patch.esp  [Version 1.4.0]18  SM Plugin Refurbish - SI.esp  [Version 1.30]19  Francesco's Optional Chance of Stronger Bosses.esp1A  Francesco's Optional Chance of Stronger Enemies.esp1B  Francesco's Optional Chance of More Enemies.esp1C  Francesco's Optional Leveled Guards.esp++  Francesco's Dark Seducer Weapons Patch.esp++  FCOM_Francescos.esp  [Version 0.9.9]++  FCOM_FrancescosItemsAddOn.esp  [Version 0.9.9]1D  FCOM_FrancescosNamedBosses.esp  [Version 0.9.9]**  LoadingScreens.esp1E  All Natural.esp  [Version 1.1]1F  All Natural - SI.esp  [Version 1.0]20  Immersive Interiors.esp  [Version 0.7]21  Immersive Interiors - Lights Addon.esp  [Version 0.7]22  Enhanced Water v2.0 HD.esp++  Enhanced Water v2.0 HD - SI Addon.esp  [Version 0.2]++  Visually Realistic Deadly Lava.esp++  300_Combat Sounds.esp23  Echo_ChapelChant.esp24  AmbientTownSounds.esp25  MIS Low Wind.esp26  MIS New Sounds Optional Part.esp27  Atmospheric Oblivion.esp28  Distant Chapel Bells.esp29  PCSoundCalisto.esp  [Version 2.6]2A  Rainbows.esp2B  All Natural - Real Lights.esp  [Version 1.1]2C  Cities Alive At Night.esp2D  WindowLightingSystem.esp2E  Book Jackets Oblivion.esp++  Cobl Bookjackets.esp2F  ChaseCameraMod.esp30  VanityCameraSmoother.esp31  ClocksOfCyrodiil.esp32  ImprovedSigns.esp++  Item interchange - Extraction.esp  [Version 0.76]33  MoveQuestItems - OBSE.esp34  BetterMusicSystem(SI).esp  [Version 1.0]35  TryBeforeYouBuy.esp++  VA_BetterGold.esp36  Vows and Covenants.esp37  Willful Resistance.esp  [Version 4.0]38  Enhanced Economy.esp  [Version 5.0.2]39  Choices and Consequences.esp  [Version 2.02]3A  Display Stats.esp  [Version 1.3]3B  DropLitTorchOBSE.esp  [Version 2.4]3C  Duke Patricks - Follow That Actor.esp3D  Duke Patricks - Friendship Ring For Companion Detection.esp  [Version 1.8]3E  Enhanced Seasons.esp  [Version 1.3.1]3F  FormID Finder4.esp40  kuerteeActorDetails.esp41  kuerteeAutoSaveAndTime.esp42  kuerteeCleanUp.esp43  Oblivion Graphics Extender Support.esp  [Version 0.3]44  P1DmenuEscape.esp45  Streamline 3.1.esp46  Map Marker Overhaul.esp  [Version 3.8]47  Map Marker Overhaul - SI additions.esp  [Version 3.5]48  Enhanced Hotkeys.esp  [Version 2.0]49  FastEquipping.esp**  Book Jackets DLC.esp++  MaleBodyReplacerV4.esp4A  1.4TheAtlanteanSword_leather.esp4B  Adonnays Classical Weaponry.esp4C  Adonnays Elven Weaponry.esp4D  Adonnay's_Elven_Sabres-MOBS.esp4E  ak_testhighheels.esp4F  Armory of the Silver Dragon.esp50  MODAssassinsCreed2_Revisited.esp51  Dread Knight Armor.esp52  Forestlight Armor.esp53  Galadhrim_EV.esp54  Gizmodian - Shell of the Artifice.esp55  Gizmodian - Copperthorn.esp56  HGECKoganeHuntressOutfit.esp57  HGEC Witch Queen Ritual Robe.esp58  JG Elven.esp59  MODArnTemplar.esp  [Version 2]5A  MotherSword.esp5B  MODMassClothes.esp5C  NexonsArmoryENG.esp5D  pale_rider's Armory of the Berserker.esp5E  pale_rider's Nordic Warrior Armor.esp5F  Priests of Dibella.esp++  RTFemaleReplacerV12.esp60  Slof's Persian Outfit For Males.esp61  Slof's Warhammer Robe.esp62  Silverlight Armor by Jojjo.esp63  StarX Witcher Based Outfit.esp64  TheFatherSword.esp65  Tyrael Armor.esp66  RF_Crimson.esp67  Vvardenfell_Imports.esp68  Warglaives by Jojjo v1.0.esp  [Version 1.0]69  Thieves Arsenal.esp++  Thieves_Arsenal_Patch_033010.esp6A  XiaNewAmuletsV1.esp**  Roberts Armamentium female.esp6B  KDCircletsOOOOptimized - NPC Equip.esp  [Version 1.2]++  FCOM_KDCircletsOOOOptimizedNPCEquip.esp  [Version 0.9.9]6C  Slof's Oblivion Robe Trader.esp6D  Cobl Glue.esp  [Version 1.73]6E  Cobl Si.esp  [Version 1.63]6F  Bob's Armory Oblivion.esp70  FCOM_BobsArmory.esp  [Version 0.9.9]71  Loth's Blunt Weapons for Npcs.esp++  FCOM_LothsBluntWeapons.esp  [Version 0.9.9]72  Oblivion WarCry EV.esp  [Version 1.08a]73  FCOM_WarCry.esp  [Version 0.9.9MB5]74  Oscuro's_Oblivion_Overhaul.esp  [Version 1.34]++  OOO-DLT_Remover.esp  [Version 1.33]++  OOO_XiaNewAmulets Addon.esp  [Version 0.5]**  OMOBS.esp  [Version 1.0]75  Choices and Consequences - OOO.esp  [Version 2.0]++  ArmamentariumLLVendors.esp  [Version 1.35]76  ArmamentariumArtifacts.esp  [Version 1.35]77  OOO 1.32-Cobl.esp  [Version 1.72]78  FCOM_Convergence.esp  [Version 0.9.9Mb3]++  FCOM_EntropicOrderRebalance.esp  [Version 0.9.9beta2]79  FCOM_RealSwords.esp  [Version 0.9.9]7A  Mart's Monster Mod - More Wilderness Life.esp  [Version 3.7b3p3]++  Mart's Monster Mod - Looting NPCs & Creatures.esp  [Version 3.7b3p3]7B  Mart's Monster Mod - Dungeons of MMM.esp  [Version 3.7b3p3]7C  Mart's Monster Mod - Hunting & Crafting.esp  [Version 3.7b3p3]7D  Mart's Monster Mod - Farm Animals.esp  [Version 3.7b3p3]++  Mart's Monster Mod - Slof Horses Complete.esp  [Version 3.7b3p3]++  Mart's Monster Mod - Diverse Runeskulls Loot OOO.esp  [Version 3.7b3p3]++  TamrielTravellerAdvscript.esp  [Version 1.40Alpha]7E  TamrielTravellers4OOO.esp  [Version 1.39c]7F  TamrielTravellersItemsCobl.esp  [Version 1.39c]80  ShiveringIsleTravellers.esp  [Version 1.39c]**  TamrielTravellersHorseTextures.esp  [Version 2]++  FCOM_TamrielTravelers.esp  [Version 0.9.9]++  FCOM_HungersUnitySI.esp  [Version 0.9.9]81  FCOM_MoreRandomSpawns.esp  [Version 0.9.9]82  FCOM_MoreRandomItems.esp  [Version 0.9.9]++  Mart's Monster Mod - Shivering Isles.esp  [Version 3.7b3p3]++  ArmamentariumLL4OOO.esp  [Version 2.01]++  ArmamentariumLLMagicOOO.esp  [Version 1.35]83  Geomancy & Gem Dust OOO.esp++  MMM-Cobl.esp  [Version 1.73]84  Armoured Arms Redone.esp85  Artifacts.esp  [Version 1.1]++  Artifacts - ArmaCompleteAddon.esp  [Version 1.0]86  Better Dark Brotherhood Sanctuary.esp87  BladeOfTheHaunted.esp  [Version 2.2.1]88  BrotherhoodRenewed.esp  [Version 1.0.9]89  G&J - Cruentus Veneficum.esp8A  GTAesgaard.esp8B  GTAesgaard_2.esp8C  LetThePeopleDrink-Cobl.esp  [Version 2.5]8D  Servant of the Dawn.esp8E  TheForgottenShields.esp8F  thievery.esp90  thievery - EE patch.esp  [Version 4.2]91  Knights.esp**  Knights - Book Jackets.esp92  Knights - Unofficial Patch.esp  [Version 1.1]++  SM Plugin Refurbish - Knights.esp  [Version 1.06]93  Knights - Cobl.esp  [Version 1.0]++  KotN Wayshrine Fix.esp94  TOTF.esp95  The Lost Spires.esp96  Mighty Umbra.esp97  Blood&Mud.esp98  Blood&Mud - EE patch.esp  [Version 4.2]99  Lost Paladins of the Divines.esp9A  MannimarcoComplete.esp9B  MannimarcoRevisited.esp9C  MannimarcoRevisitedOOO.esp  [Version 0.1]++  FCOM_MightyUmbra.esp  [Version 0.9.9]9D  FCOM_Blood&Mud.esp  [Version 0.9.9]++  FCOM_Knights.esp  [Version 0.9.9Mb3]++  FCOM_SlofsRobeTrader.esp  [Version 0.9.9]9E  Enhanced Daedric Invasion.esp++  FCOM_EnhancedDaedricInvasion.esp  [Version 0.9.9]9F  ElsweyrAnequina.espA0  BetterMusicSystem(Elsweyr).esp  [Version 1.1]++  ElsweyrAnequinaFemaleBody.espA1  Tales from Elsweyr Anequina.espA2  HeartOftheDead.esp  [Version 6.5]A3  JQ-Fighters_Guild_United.esp++  FCOM_FighterGUnited.espA4  Harvest [Flora].esp  [Version 3.0.0]++  Harvest [Flora] - Shivering Isles.esp  [Version 3.0.0]A5  Bag of Holding.esp  [Version 1.5.0]A6  Cliff_BetterLetters.esp  [Version 1.2]A7  CompanionHorseSupportFIX forCMPartners.espA8  DecoratorAssistant with OBSE v1.1.espA9  Dungeon Actors Have Torches 1.6 DT.esp++  GotNoClass.espAA  PersuasionOverhaul.esp  [Version 1.43]++  PersuasionOverhaul_OOO.esp  [Version 1.2]AB  Salmo the Baker, Cobl.esp  [Version 3.08]AC  Enhanced Vegetation [125%].espAD  Soulgem Magic.esp  [Version 1.0]AE  StarX Vampire Deaths.espAF  Toggleable Quantity Prompt.esp  [Version 3.1.1]B0  Enhanced Economy - House prices.esp  [Version 1.0]B1  SM Encumbrance and Fatigue.esp  [Version 2.6]B2  RealisticForceMedium.espB3  RealisticMagicForceHigh.espB4  GalerionUnarmoredAcrobatics.espB5  RealSleepExtended.esp  [Version 2.4.2]B6  TeachSpell.espB7  RefScope.esp  [Version 2.1.0]B8  MidasSpells.espB9  Enchantment Enhanced.espBA  EnchantmentRestore.esp++  EnchantmentRestore_Wells.espBB  RenGuardOverhaul.espBC  Enhanced Grabbing.esp  [Version 0.5]BD  Duke Patricks - Combat Archery.esp  [Version 3.5]BE  Duke Patricks - Double Arrow Nock Shot.esp  [Version 1.5.1a]BF  SM Hand Combat.esp  [Version 1.0]C0  kuerteeNPCsYield.espC1  Duke Patricks - Near Miss Magic And Arrows Alert The Target.esp  [Version 7.1]C2  Duke Patricks - Actors Can Miss Now.espC3  Duke Patricks - Fresh Kills Now Alert The NPCs.esp  [Version 4]C4  Unequip Broken Armor.espC5  nGCD.espC6  nGCD Oghma Infinium.esp++  nGCD Skeleton Key.espC7  ProgressGSD.esp  [Version 2.0]C8  ProgressMBSP.esp  [Version 2.0]C9  ProgressSBSP.esp  [Version 1.0]CA  ProgressRBSP.esp  [Version 1.0]CB  ProgressRacial.espCC  ProgressArmorer.esp  [Version 1.0]**  Let There Be Darkness - Cyrodiil + SI.esp**  Let There Be Darkness - Knights.esp**  Let There Be Darkness - OOO.esp**  Let There Be Darkness - Thievery.esp**  Let There Be Darkness - Lost Spires.esp**  Let There Be Darkness - Elsweyr.esp++  Item interchange - Placement for FCOM.esp  [Version 0.76]++  Slof's Better Bodies.espCD  _Ren_BeautyPack_full.espCE  DKImperials.espCF  kgt_Avve.espD0  CompanionshipRing.espD1  1em_Vilja.esp  [Version 2.3.2]D2  Aliyah.espD3  CompanionMaster.espD4  GG_Valeria_Revived.espD5  GG_Vincente_Revived.espD6  Sonia.espD7  bgBalancingEVCore.esp  [Version 10.52EV-D]**  TamrielTravellers Cosmetics Cobl or RBP.espD8  bgMagicEV.esp  [Version 1.7EV]++  bgMagicSpellTomes_for_WryeBash.esp  [Version 1.68EV]++  bgMagicItemSigil.esp  [Version 1.68EV]++  bgMagicEVStartspells.esp  [Version 1.68EV]D9  bgMagicBonus.esp  [Version 1.7EV]++  bgMagicEVAddEnVar.esp  [Version 1.68EV]DA  bgMagicEVPaperChase.esp  [Version 1.68EV]DB  bgMagicAlchemy.esp  [Version 1.57]++  bgBalancingEVOptionalClasses.esp  [Version 9.0EV-U]++  bgBalancingEVOptionalFangs.esp  [Version 10.0EV-D]++  bgBalancingEVOptionalMoreEyes.esp  [Version 10]**  bgBalancingEVOptionalNPCDiversity, TNR Merge.esp  [Version 10.0EV-D]++  bgBalancingEVOptionalFCOMAdditions.esp  [Version 10.]DC  bgBalancingEVLAMEAddition.esp  [Version 10.51EV-D]++  bgBalancingEVLAMEGlue.esp  [Version 10.0EV-D1.62EV]**  bgBalancingEVOptionalNPCDiversityLAME.esp  [Version 10.5EV-D]++  k_HOD_RBP_patch.espDD  bgIntegrationEV.esp  [Version 0.993]**  bgIntegrationEV - Alternative NPC Faces by LazyMonk.esp  [Version 0.99]DE  ScriptedArgonianFeet.esp++  Disable Tutorial Text.esp**  [GFX]_Initial_Glow-all.esp**  [GFX]_Initial_Glow-creatures.esp**  bgMagicEVShader.esp  [Version 1.7EV]++  bgMagicShaderLifeDetect.esp  [Version 1.68]DF  bgMagicLightningbolt.espE0  UnderdarkSaga.esp++  Bashed Delayers - MERGE ONLY.esp  [Version 2.09]++  Cobl Filter Late MERGE ONLY.esp  [Version 1.53]**  All Natural - Indoor Weather Filter For Mods.esp  [Version 1.1]E1  Bashed Patch, 0.esp
 On a side note, @Brozly
I can confirm this to be true, not only for Vilja, but for other companions as well...  In my case, Wintermoon from HoD (and a few CM Partners,) Companions Viconia and Stoker Wolff, and a few others have experienced the same problem with those weapons and their god-like scripts.  I usually try not to hit any companion with me when I had that sword (or any others in that set) equipped, but nothing is perfect....  My aim being one such thing.  This is also for the sake of reference and interest.
Sealwarrior