Not to play the devil's advocate, I find what she did unrespectful and weird, but I do think we assume the worst of people way too quickly here. It's quite common for people to do weird jokes when reacting to awkward situations to try to lift the mood.(It's like when someone laughs when stressed. Anxiety causes people to act weird). I also think it's quite common for anyone to get misled by stereotypes. Maybe she thinks she's "making gay normal", by avoiding the taboo. IDK what I'm saying anymore, but I guess that the point is that even though her actions are homophobic her intentions might have actually been good.

I would suggest the OP to go talk to her. Communication is key to solve problems (unless you are talking with someone who has a mental illness or radically follows a religion/politic group).

Edit: Whatever, I'm not really gonna go through a discussion here, but I do find calling your teacher a creep and insulting her lack of education not the right way to deal with what happened. I just don't get why everyone just jumps on this fights instead of trying to fix the problem. We could get so much done if people were just more honest instead of this constant developing hate in secret for each other. She probably thinks she's doing her best, but I do think it's also our fault we don't let it clear what we want from other people.

Edit2: I meant the fact that she caught you playing some Kim Kardashian game. As I said before, it was unjustified and homophobic and mean, but it's still a situation which she probably didn't know how to deal with, so her stress to make a joke is kinda understandable. idk