Moving on

hello, about a month and a half ago, my girlfriend broke up with me. I've been in other relationships before but this one was a lot different for me in that i just felt she and i clicked on a level I never have before. Unfortunately, she came to me and told me that she no longer felt the same way as she did before, and broke up with me. fast forward to now, Ive honestly been missing her more than ever. I don't sleep much anymore because I dream about her every night, and it hurts to much to wake up from that. we've tried texting a bit to stay friends but honestly it just hurts to much talking to her, and knowing I don't have what I used to. a few days ago, she texted me asking how I's feel if she started dating another guy. obviously i didn't want that to happen, but I want her to be happy so I told her if it would make her happy I'd be ok with it. then I found out who the guy was. right before we started dating, she was flirting a lot with another guy too, but during a party we were all at, he got drunk, said some very rude things to her, and got VERY handsy. I helped her get out of that situation, and took her home. I'm tearing my hair out now. what did I do wrong? why does this guy get what I don't? my heart hurts more than ever, and I see no fix in the future. she didn't even have a reason for leaving me. she just didn't feel the way she used to. in summary: I don't know what to do. I would give anything to earn her love again, but I don't know if there's any way to do that. But I have no idea how I could ever move on. I dont really have anyone to talk to about this, so I posted here.

Don't let her hurt you. Don't text with her! You need peace for yourself!She lost feelings for you and she has no business with your emotions anymore! Cut her off completely!