Will he be faithful again after he cheated?

No offence though , but I think that you are being too harsh to him. I understand you are feeling jealous because he is going out with someone else. But I think you should be sentitive to him , he got his own group of friends and I believe you too. Most importantly talk to him nicely and not to lose your cool. Good , at least he agreed. Right now just see what would turn out next!

Well, it depends on how long this guy was dating you.

Most likely he could be cheating on the other girls with you.

If he was dating you for a longtime and he cheated then he might (chances are) he is feeling guilty.

On the other hand if he just started dating you and you caught him cheating in the first 5-10 days of this (new) relationship. I think he is just very vulnerable. He might be looking at several women.

RISKY MOVE: If you love him, invite the other girls over.

Cheaters cheat. Period. They rarely stop because they love the thrill of getting away with something.

That's tricky. I was with someone for 5 years and we were broken up but sleeping with each other and had a agreement that if we were with anyone else we would tell each other. Well he was with someone else and I found out. I consider that lying and "cheating'' I wonder how you could ever trust your boyfriend again? A bond was broken. I think by taking him back it allows him to treat you that way it enables him to do what he wants to do. I personally never forgave my ex, I know I'm better then that. I hope all works out for you.

How can you trust him? Yeah, he told you he loved you and that there's no one else, but while he was telling you that what was he telling the other girl before you found out about her? It's not like he "slipped up and had an accident", he took time to have an affair. A liar is a liar, let him be some other girl's problem.

I hope he is telling you the truth but, I think once a cheater always a cheater is actually true. But, You could be the one that he changes for. You have to let go that he cheated and trust him again or your relationship will never work. That is a really hard thing to do. I can't tell you if he will stay faithful you have to trust him and find out for yourself.