This is an interesting scenario to say the least. Here is what you have to find out for yourself.

1) Did she cheat on you because of the situation? Basically was she forced into it by this guy and she just couldnt escape due to fear of being harmed (beaten, hit, ext.).

2) Or did she flirt way to much, get herself into this situation, and then decided at the last minute it wasn't worth it?

If #2 is the case.. I would be strong and NEXT her ass. I know this is not what you want to do at this moment, but in the long run you will save yourself a lot of trouble, heartache, and peace of mind. She is 22, im dealing with a 21 year old right now in a 6 month relationship. I tell her the same things such as go out, flirt, ect. Have fun BC you are young and in college...live it up! But...

**Just know there is a line and if you ever cross it, we are done and ill never talk to you again. So far she has been loyal and has not crossed the line (as far as I know, but again I am secure and dont need to go snooping ect.) It seems your girl in this situation has crossed it and openly admitted it. If this is not acceptable to you then NEXTING her ass is the only option. You cant go back on your word... bc she will know that your word means less now and youll lose the frame. And your own self respect... dont let this girl get away with that shit if its the truth... its not respectful to you... thats what is KEY here. If she REALLY respected you, loved you and everything else like she says, she would not have put herself in this situation and would be strong enough to say NO to this douche when he tried to escalate.

--Now if number 1 REALLY is the case (kind of unlikely but it could be) then I would forgive her and move on, tell her to learn from the situation, and to never let a guy get that far with you again because it just dangerous to her health. Make sure she always goes out with friends ect to prevent this from happening.

*^*^*-In conclusion you need more evidence when making this decision. Talk with her face to face and really look into her eyes for any sort of tells. Ultimately it is in your hands, we are here to help you make a decision from our own personal experiences with women. I wish you the best in the decision you make.

Duke