Speaking from personal experience it is extremley difficult to get past someone cheating. My husband cheated on me several times before we were married. I didn't find out until we had been married over a year. I have three children by a previos marriage and sold my house, left my friends and security to move to a city I don't even like. Since that time, I continue to carry the hurt and resentment with me. Though this situation has made me stronger, we are more like roomates and to add more problems to our marriage I ended up falling in love/very strong feelings for someone else. I have ended it but I think of him daily. This goes against everything I believe in. I feel sorry for you, but unless you are both really committed to making this work i.e.- counseling etc. It would be a very long road. Make sure you really want to do this.