I am in professional school and about a year ago, I began talking to this girl. We slept together without clothes and everything before but never had sex. She told me about 6 months ago she had feelings for me that she thinks would never go away but can't date me (bc I am not indian like her). We got into a big fight and didn't talk for months. Then she came up to me on the street with a huge smile about 4 months ago. She has been flirty with me ever since and was texting me almost every day (she was always the first to initiate contact). Then for my birthday the other week, she took me to the club and was holding my hand the whole night and we were dancing for hours together.
But, here's the shocker- she came over to study a few days ago and we had the greatest time together. She was laughing so much. But then she gets a call from her friend and she leaves the room and talked about this other guy. So I asked her if she had a bf and she said yes, you did not know? I said no, but kept it cool like it didn't affect me. She then was kind of giggling and I was like wtf but kept my cool.
I then did something kinda bad- checked her fb messages when she stepped out and found out who the guy was. She had sex with him and a few weeks ago she said that he's everything she wants and they were sending pics of naughty costumes to each other. It really hurt me and I shouldn't have looked at her messages but I did. This kid lives in another state back where she is from and she is there now for break. What should I do?