I want her to have a breakup

I recently asked this girl out from my class and she told me she had a boyfriend. That didn't feel as bad for a few days, until I noticed that she keeps staring at me in class, and will purposely slow down when moving out of class or into class so that I would cross (maybe I'm delulu or maybe it's true). This made my delulu worse that maybe she was lying about having a boyfriend just because I asked her out of the blue. (We're not friends, I didn't knew she existed before I entered this class, and she basically didn't know I existed until I asked her out)

Today was worst of all. I exited my exam hall, completely flunking it, and when I come outside I see her going on with her boyfriend, and then I come back home and see that she deleted my Instagram request. And basically ever since I asked her out (about a month ago) I have been yearning more and more for her. And even more so once I thought she started giving me attention. I really hope they breakup before this semester ends and she dates me. Her boyfriend doesn't even look good what the hell.

How do I get over her