Help.!

My husband and I had decided to get a divorce. About a month into our divorce I had sex with another guy and it was AMAZING.!!! I experienced my first actual orgasm and just everytime it was phenomenal. Recently My Husband and I have decided to reconcile our Relationship but I just can’t seem to enjoy the sex like I use to before I experienced the other guy.! And My Husband was my first so I never had anything to ever compare our sex life to until now. And while I love him I just can’t seem to be sexually satisfied anymore by him. I have talked to him about it and he has tried new positions and new ways but its not helping.! I know it’s really affecting his ego and I started faking it to try and make him feel better because it doesnt feel bad, Hes never been bad in bed. I use to love sex with him even though I never orgasmed or anything with him. What should I do.?