<human>: So my last post was about her breaking up with me beacause she didnt love me anymore. It really hurt me in the beginning but i was slowly recovering and we ended up chatting during class and being friends. Then after 2 weeks i see she's in a relationship with a guy she was "friends" with. Aftetr having a meltdown and chatting with my peers, i found out she was lying and cheating on me with this guy. I felt so hurt, betrayed,  and angry. I was finally able to accept she didnt love me but this tears me apart even more. Ive decided on no contact and deleted all account and numbers of hers. Ive seen her twice since i found out this week and have been trying to avoid her. During one of our classes,  she asked to sit by me and i told her it would be better if she didnt. The second time she asked how i was doing and i said "ok" but obviously not wanting to talk with her. She knows something is up but not sure if she knows that i know shes cheated. Im not sure if i should just tell her to stay away from me or just talk with her and tell her i know she cheated and how i feel. Im definitely not looking to get back together. Part of me wants to tell her off but i know that will just make things worse. So should i have a final talk with her or just tell her to leave me alone?

Can you give me the gist of the text in a nutshell?
<bot>: found out gf cheated after breakup. Should i have a final talk with her or just tell her to leave me alone?