Hey, it would be hard to remember than I'm married to her when I forgot to tell her to move to my house near Falkreath. I went to Whiterun to sacrifice her and I had the sound off so I didn't hear her calling me "My love" (which is annoying) and I slaughtered her.
And divorce would be hilarious.
Me: I want a divorce
Lydia: YOU'VE BEEN SEEING THAT ELVEN SK*NK, HAVEN'T YOU?
Me: Hell yeah, I have!
I got a better one.
Me: Let us go for a adventure my love!

Lydia: Okay.

(they go to the Sacellum of Boethiah)
Lydia: ... Why are we here anyway?
Me: No appearent reason. (turn around and mutter to myself "By the Nine it's going to work!"

) okay.. touch the pillar please
love.
Lydia: (starts to question the fact I said love in a evil voice) oookay...

(touches the pillar) what t- (stuck on the pillar) Love! WHY!?

Me: It's not you... to hell with it, it is YOU!

(pulls out a dagger )
Lydia: YOU SLEPT WITH THAT (censoring) WOMAN FROM THE (censoring) COMPAINION OR WAS IT THAT ALTMER THAT GAVE YOU THAT MARK OF DIBELLA HUH?! I'll KILL THAT (censored)!
Me: (slits Lydia's throat) None of the above. (then eats Lydia) Death do us part :3