I know how pissed off and hurt you must be feeling. My sister has been cheating on her husband. He's been calling me and crying on the phone. I feel so bad for him. I don't think he could trust her again, even though he wants to. He'll just be suspicious every time she goes anywhere and he'll always be snooping. That's not what you're supposed to do in a marriage. Most men I know would throw their wife out if they caught her cheating. She shouldn't expect you to just get over it. In fact, she should be kissing your ***** right now if she wants this to work out with you. She's the one who's at fault here.
As far as finding a woman who won't cheat, they are out there. I've been married 6 years and never have or never will cheat on my husband. I don't put myself into situations where I can get involved with a man like that.

And maybe it doesn't "suck". Maybe there is someone better for you out there. With morals. Someone who was really made for you.