How can I get over my fiancee sleeping with a guy?

I have been dating my fiance carole for 2 years now and we just broke up about a week ago. 4 days after breaking up with me she went out to a club with her friends and and met a MAN who she soon brought to her house that night and had sex with. She was supposedly 100% lesbian when I met her and now I dont know what to do... She has no remorse because we were broken up at the time. We were always in love but have had out share of fights. But she is still having sex with this guy and I dont know what to do and I want her back more than anything in this world. But she will barely stay on the phone with me for more than a minute and when she does shes not listening to me.... I have since moved out into my parents house and she says that when I get my life together she will take me back. But my life is together, she just wants to keep having sex with this guy. No matter what I do I cant get over her. And I dont know if I should because she said we will still get back togther. I dont know what to believe or do... I cant sleep, I cant eat... im numb... What should I do? I really want her back....

It sounds like trying to get over her might be the best option. It will probably be difficult and take some time, but that's ok. You don't have to force it or rush it.

If she does not want to talk to you, does not listen to you, says you need to get your life in order even though it sounds fine, and is still seeing this other guy, that's just not a good sign that she wants something serious with you.

wake up and smell the coffee. she doesn't want to give up her relationship with this man, and doesn't want to take you back. plus you two get in fights.

have a good cry, and then please move on and get over her. spend time where you can enjoy your life and not think about her.. at work.. at a mall.. at a park.. at the movies.. wherever is best for you.

you deserve someone who will treat you with love and respect.