Long story short I had this 10/10 pretty and hot chick for 2 years as a plate, never once back then I gave a singular fuck about her, I was just fucking around, she was completely in love with me and extremely submissive, I let my guard down and developed feelings for her, I gave in and started a relationship after she cried and annoyed me for months, after a month or so I saw the mistake I've made because she was becoming more and more annoying, disrespectful, and never gave me space so I dumped the relationship (July 2020) with the stupid mindset of "shit will go back to what it was 😎" it obviously didn't, she became even more annoying and disrespectful, so I dumped her for real and she hated me for it, she cried a lot and called me for days... one month later she engaged in a relationship with a random dude (I think it's just pettiness for what I did) and ever since she always calls me and text me for no fucking reason, she wanna talk random stuff, she flirts but she don't wanna hook up with me because "she's engaged", she even came to my doorsteps multiple times and said she was conflicted because she loves me, even then she didn't let me hit it, she blames me all the time for everything that went wrong with us and like I said I think it's just pettiness for what I did because it feels like she's torturing me, she also doesn't break up though, she says she wants me, loves me and all that shit.. She says she can't break up, she doesn't want to hurt him because he helped her when I left her alone feeling like shit. Ever since I broke up with her I had multiple chicks and my plates still spinning but she makes me feel depressed and I really miss that ass. I know I shouldn't give a fuck, but she fucking me up in the head. What to do ?