TL:DR - I've tried to date her, she declined. Got told she had sexdreams about me. I've kept my cool and told her to delete my number. Didn't speak a single word to her for about two months and started with Daygame.
Lately she seems to be more invested, want to spend her breaks with me ("do you want to spend your break together with me?") and that's a major problem for me. I know I have a oneitis for her and I'm trying to avoid her as much as I can.

Did you guys have any advice how to prevent further bullshit?