Well about 6 months ago me and my girlfriend of 2 1/2 years broke up. We had been arguing day in and day out for a long time and one night she decided to leave and go out with "new friends from her new job". Well I called and called her all night and she never answered and never came home. I moved out the next day. I guess we were both done at the time. She ended up moving from Reno to Boise to live with her Mom and go to school. We talked for a short period of time, which was usually very awkward because of me envisioning her with other guys. She then came back to town to pick up the last of her things about a month later and we were supposed to say hi before she left, well she stood me up "because it was too awkward".
We then didn't talk for about 4 months, she then emailed me about a week ago and we have been talking. We both have strong feelings for each other, but I found out from her that she has dated a couple guys and slept with one.
It may just be me but that is devastating, I hate that I can envision her with another man. I feel like I was stabbed in the back, but then again we were broken up. So do I let it go that she slept with another guy, or do I tell her to piss off?? Thanks for the help!