So I see that creating an actor is on the wiki, so I tried following that except the only changes I made was add factions which was follower, marry, and player. So then I added the npc to The Bannered Mare and left it like that and saved file (I'm not super genius computer smart and getting in deep depth with useing programs like these). I walked in the tavern and everyone attacked the npc, it was essential so it didn't die, and I couldn't even talk to it.
All I want to do is create a custom follower with inventory access, marry option, etc just like the ones you can already have as followers in game.