I think the key thing would be if your hubby has cheated before. If he has, the possibilities of a clean slate for both might be slightly better. If he did not actually cheat on you physically, then it's pretty hard since you have trails leading to 2 guys. If it can be 2 guys, it could possibly be more. This is probably a likely line of thought for a man in his situation right now.
I can't comment on other factors since it's hard to know what truly led to your relationship issues.