update, since it was fairly intense...
So, Karla was talking to Wendla (from Spring Awakening) and the conversation got to how they are both sort of sex neurotic. And Wendla mentioned being raped by Melchior, which pissed Karla right off (obviously) so she was raging about that. Ilse attempted to defend him, unsuccessfully.
At this point, Melchior strolled in, blissfully oblivious, followed shortly by Moritz. Karla didn't realize initially who he was, but the fact that Wendla was obviously lying about not knowing him sort of tipped her off. When she asked him his name and he introduced himself, she basically went batshit crazy and tried to kill him with witchfire, initially because of Wendla. However, after Wendla made it clear that she didn't want him dead (which didn't really get through to Karla at this point), it became sort of a blurry line in Karla's mind about Melchior and Uncle Hobart, and hence she got the idea that if she killed him it would be like killing Uncle Hobart, which would help her not be afraid anymore so she can enjoy a relationship, maybe. Unfortunately, Moritz, Ilse, and Wendla objected to this, and threatened all sorts of dire actions (still unsuccessfully). So at the point when it was sort of turning into a free for all brawl and Karla was menacing people with her snake tooth, Roger Mackenzie showed up and attempted to calm her down. After a lot of shouting, he got her attention (and that of everyone else, who were all sitting on Melchior at this point) and told her that essentially murder was wrong and that he (Melchior) had just made a mistake.
So then Karla went REALLY batshit crazy and started babbling on and on about how much she hates men and rapists and all their counterparts, and she's steadily getting more and more shaky and closer to tears. By the time anyone realizes that, Roger attempts to settle her down and practically gets smacked for his trouble. Karla yells at everyone to leave, pushes Ilse out of the room even as she tries to comfort her, and melts into a blubbering mess.
Morton comes in and helps her clean up a little, while Ilse and Wendla talked in the other room. Karla thinks that everyone is going to hate her and is more than a little scared of what happened.
She wants Armand.
Aaaaand that's where we left off. So thank you for tolerating my extremely pointless description - ta, I have to go eat food.