So, long story-short, my friend(I'll refer to her as Y), has been bullying me for a while(and passing it off as just friendly bantering), and it's really started to piss me off lately because she's recently been taking things way too far. Everyday she's constantly making jokes about me, basically just sexualizing and insulting me, and she even tends to touch me without my consent in some of the more sensitive areas of my body. These are just a few of the things she does, but yea, it's starting to really annoy and make me very uncomfortable. Anyways, today, while I was waiting with my friend for school to start, I began making a strumming movement with the strap of my backpack to mimic the feeling of playing my guitar because I was bored, and seeing this, Y decided to come over to me and make a joke telling me that it looked like I was jacking myself off, and right there and then is when I told her to stfu because I just got tired of her, but ever since then I've felt like a complete asshole for that, especially because she got pretty quiet after that. Though I can say that I've tried telling her to chill out with her "bantering", and to stop making certain jokes about me, I really do still feel bad about this, even if she hasn't listened to me once. AITAH for this? Btw, I'm so sorry if this post is hard to understand or read, English isn't my strongest suit.