Most Helpful Girl
First off, stay away from these girls! They are bad news! I'm very sorry that you were cheated on, I know what it feels like as my past 2 relationships have ended like that. I was cheated on by two different guys :(
It hurts and I'm having a hard time trusting people. I'm afraid I'm going to get hurt.
The best way to stay sane is to throw yourself into the things you love. Try to pick up some new hobbies and hang out with good friends. Make sure to find a person you can trust to talk to if you feel the need to talk to someone. Sometimes it's good to get your feelings off your chest.
The thing is, cheating is never about the person being cheated on. It's all about the person who is doing the cheating. They for whatever reason, thought it was a good idea. Maybe they gave into temptation after a night out, or maybe they knew the person and kept flirting with them even when things got too heated. Who knows. But it's all about the fact that people can't control themselves and made a bad decision. It's all about their choices.
Try to remind yourself that despite how terrible it's been for you, at least they showed their true colours. You weren't married to them and hopefully didn't have any kids with them. Now you have a chance to meet someone who is going to treat you right. you have that to look forward to now :)
Most Helpful Guy
I think you need to take some time away from the dating world... focus on yourself until you can build your self-esteem back up and learn to trust again. As a general rule for the future, don't take back a cheater, it's only asking for trouble.