Op, you don't understand. It's pretty obvious that she's aware that she's been raised to a position above her skill set. She, to some degree, is aware of this but does not want to fully admit that to you or herself.
Instead, she tells herself, and you, that "everyone makes mistake teehee" and use that as a justification for "allowing" students to argue with her.
So if a large number of students point out that she did something retarded, she has something to fall back on, possibly a "I was just testing you guys <3 <3 <3". But if you're the only faggot doing so, then she can lash out and single you out. Notice how she projects: "bask in your 3 points of glory" isn't a normal way to respond to a student asking for a few marks. This is a projection of her hurt self image. Most women are narcissists so this is not surprising, really.
Anyways, your mistake was having a female prof.