If he's married with 4 kids then expose the affair and that will nip it in the bud. He's just working your wife for something on the side. He's not going to leave his wife regardless of what he tells your wife. Those are just lies to get in her pants. It cracks me up how easily women fall for those lies. Maybe deep down they know they're being lied to but they're willing to trade sex for companionship because all these stories have the same beginning. A husband that got complacent in the marriage and a lonely wife. That part is on you but the cheating is on her.
DON'T BE PASSIVE ABOUT IT. Women DO NOT respect doormats. Don't bother with MC. You can't work on a marriage if it has more than 2 people in it and yours certainly does. First thing is address the affair. If she doesn't know you know then get screenshots of FB convo's, or whatever you need to do.
