How can islam help me get over my Husband cheating on me?

My husband who prays 5 times a day cheated on my 8 months ago with anuother muslim women. When i found out about the affair is was stupid enough to think that as they are both muslims they would not have committed 'Zina' but they have. this has broken my heart. My husband has come back to me and claims that he will never do this again but i find it hard to get past the fact that he was capable as a Gos fearing man to do this. and this intern has made me move away from my deen becuase i think that Allah can't really give Janat to someone who has hurt people and committed a forbidden act just because he does his namaz.