He is a selfish ass for making you compromise your values with guilt and manipulation.
Stay true to yourself. He is the one that is sick and needs help.
You deserve better. Kick his sick ass to the curb.
Do your kids know about this "2nd life"? What would he tell them if they found out?
He has no idea what marriage and respect is all about.
I totally agree with healthydad. It is emotional abuse if you are manipulated into doing something you DONT want to do.
Hopefully he gets help soon before the kids find out.
Does he have a sexual addiction? Has he ever looked into this? Until he does it will keep on getting worse. I would worry about STD's and Prostitution usage as well.