Quoting It's so Fluffayy!:" <blockquote><b>Quoting Onalee's Mummy:</b>" Would you leave him if he had? When my ... [snip!] ... up for other reasons in the end)"</blockquote> Honestly I don't think I would, I just want him to be honest with me."
I hope he's not cheating, but how do you expect him to respect you and not cheat on you if you're just going to forgive him anyways? I'm sorry but just because he cheats and is honest about it doesn't make it any better, there is no difference between hiding it and telling the truth about it. He probably know's that about you, because if he cared if he lost you and knew that if he cheated he'd lose you...he wouldn't have done it in the first place. People make mistakes but this is not one of those dumb mistakes, he know's what he's doing which is why he's hiding it.