Boethiah is a whore!

Every damn time I kill the merc she takes him over, says a few lines, then keeps repeating them when I try to initiate dialogue. So then I just skip that bit and kill her cult and she lets go of the merc, preventing me from finishing the quest.

smurfing. Whore.

Edit: Oh, apparently I killed everyone at Knifepoint too early. wtf, I'm punished for overachieving?

Edit2: She's still a whore.