So I have a new female friend in my piano class, which I tried really hard to keep bc I don't generally make female friends. But, she got into my group of male friends, which I surprisingly got along really well with at the beginning of term, like, I was the center. Then this girl came and started getting more attention than me. At first I just let it go by, but then I got completely triggered and now I just can't stand her. Like, everytime we get together and she arrives I make up a situation and leave. And at the same time I feel completely guilty bc she treats me really nicely. I don't know what to do with the anger I get, I fear I might even punch her in a drunken rage (? And I tend to have these negative awful thoughts on her, like "omg she's so mousy" and so...