<human>: Give me the gist of the text in a nutshell

I'll describe to you guys the situation.

Me: Male (18) Girl (17)
I'm in a little bit of a sticky situation with this girl that goes to my school. About a month ago I told this girl that I liked her and she said she felt the same way. After about four weeks after I told her I found out that she had been telling another guy the same thing. Normally if this happened to me I would probably just bail and forget about this girl, but we had sex. She was my first. I am not a sort of person who really cares about losing his virginity to someone special, but since I had sex with her I feel like I still like her after she had played me. Yesterday I talked to her about what happened and she said that she was so sorry and that she cared about me. She was tearing up as she was saying this too. I feel some sort of attachment to her and I don't want to lose her and at the very least want to remain friends. I told her that we shouldn't talk for a while and after Christmas break if we wanted to talk that we should and she responded that she didn't want to hurt me again.

I want to know if I am being to nice? should I just forget about her?
<bot>: Talked to this girl. I told her I liked her and she told me the same. I found out she told another guy the same thing. Had sex. What to do?