I don't know if this is bugged or not but I've one of each type of the radiant quests from the vampires and I've reloaded around 30 times... I just cannot get the quest... Am I missing something?

She can't be turned, as she lacks the proper voice -- many interactions in Dawnguard are restricted to certain voices because they couldn't get all the voice actors back.

If this upsets you, as your beloved bride cannot follow you into unlife, I note that you've spelled her name incorrectly: Jenassa.

Lol, I married her yesterday when I found out that you can turn certain brides into Vampires... By the way, does it really matter that a single letter is off in her name? -.-. Guess I'm gonna roleplay some kind of Dunmar Twilight relationship.... Meh...

It's a bit of a joke, you see -- the obvious reason for turning your spouse are for roleplaying-related (perhaps as an act of protection, or a want of eternal companionship), so I just found it funny that the name was misspelled. Not remembering her birthday or your anniversary is one thing, but...

Ahem.

Anyway, sorry that you can't turn the missus into your thrall (which is pretty much what you do when you turn them).

LMAO.
Aye, I wouldn't recommend making a hard-ass Dunmer a Vampire and then not remembering her name. That's a lot of gold spent on flowers and honey nut treats - if you survive.

Marcurio certainly doesn't act like a thrall, and I take exception to calling him one. A Vampire is not the same as a thrall at all. I don't care what the stats say about him being undead or living...
But seriously, I had no idea you couldn't turn any spouse into a Vampire. That's not fun.
(thank you Jon Curry for coming back. )

Actually, it's iffy about what exactly happens when you turn someone. All of your vamplings will state how happy they are that they've turned and how much they love their new powers.

I mean, you do basically assert your influence on them like you do to Dexion, and their vampirism affects their mind. It's enough to make the rather stilted love dialogue unnerving.

Still, for the lonely vampire, an immortal spouse is a blessing. They even comment if you blot out the sun.

"Know... that I am built of death from the ground up, and it is a corpse that loves you, and adores you, and will never, never leave you..."

***

There's something that bothers me, though.

In Hearthfire, you can adopt children.

In Dracula, the Count eats children.

The thought of this sickened me enough that I restarted my 100+ hour Dunmer. Same perks and face, just restarted him because I'd rather have a spouse with some degree of vampirism. Thankfully, Brelyna can be turned.

Bah, I don't get lovey dialogue and I'm probably missing Vampire specific dialogue from Marcurio because I reverted him to his hireling dialogue so I could keep his interesting comments in dungeons (our relationship is based upon killing stuff together - hey, whatever works, right?).
It's true you have to use Seduction - but Seduction is just a Calm effect - and it's good for your health to be calm - ask the Greybeards...
I admit I had to RP around how it's the same mechanic to make Dexion a thrall as it is to make your spouse a Vampire - I guess there's some subtlety between thralldom and turning people that's not covered with the broad mechanic of biting. And I just love how the new converts like being vampires. I've never caught them saying anything cliched or stereotypically evil, and instead they say cool things about colours and such.

As for Dracula - he throws that baby to his wives, so Hearthfire could be just the happy family for some Vampire...