Guys Here is my history,
I meet this girl 2 months ago.I asked her to go out with me 3 times and she did not want to for different reasons, I didnt talk to her for two weeks and suddenly this weekend she called me, saying she wanted to go out with me .... then accepted the invitation, I went to dinner with her, then went to club and then we had sex, I was two days without talking to her, and I discovered that she has a boyfriend!! I liked her a lot, but do not know how to act ... pretend that nothing's going on and go over it? Give up? I say her I know she has a boyfriend?