I'm not judging his salvation, i'm judging his actions. Someone really in the body of Christ would not cheat on his wife.So his actions does not line up with Christ. You can't be of both. This was not something that just happened. This is not just some mistake, a mistake is 2+2=5. To cheat on your spouse, is a thought out process. You don't just happen to look up & you're having sex with another woman or man thats not your wife or your husband. Our job as a Christian is to follow the life of Christ, this is more lined up with satan. He's is fooling himself(ourselves), if he(we),think that he is really a disciple of Christ & he's out cheating on his wife. To me if you cheat on your spouse, the person closet to you next to Christ, you'll do about anything. Cause inorder to cheat, you also have to lie, so now he's a liar & an adulterer. Thats one line I don't want to be in. Now, because of Gods Grace & Mercy, he can be forgiven, but he has to repent & turn from this wicked practice.