I'll make it short: there is a girl in my university who used me and then treats me like I have been the asshole. Now every time I see her on campus I am so mad. Like, I know how I should not care about her (which I usually don't) but as soon as I see her I get just so angry. I can't shake it off and it annoys me. I tried a lot of things like writing about it or sitting down and actively contemplating about it. Nothing works. I have such a strong urge to treat her like trash, get back at her. I know you guys believe me when I say she deserves it...... I struggle with the fact that I am this petty. I have never been that way before.