She feels that taking it "evens her out" too much. She thinks taking it is tantamount to admitting she's "broken" and that she should be allowed her emotions as is, and that everyone else should just deal with it.
Last night she confronted me after I had stepped out of the shower, and for 30 minutes made me "talk" to her because she's angry that I "outed" her and her guy to our friend, the same friend she's forbidden me to speak with. She stood in front of the door and wouldn't let me leave to get dressed, so I just argued with her naked for half an hour.
Tonight she screamed, using profanity, at the girls because they wouldn't go to sleep when she wanted. Finally left to see her guy after they finally got to sleep, and I was more than ready for her to leave.