That's kind of like why people cheat! Let me keep my spouse in the dark because if things don't work out I will still have him/her! Yuck.
I don't believe he should have any rights to the house if he hasn't been paying. If your house is worth less you don't have any built up equity to pay him. Off he comes with the divorce. (He would still be on the loan but not on the deed. My county wiped ex right off but changed my name without even checking with me!!) If he wants to buy it from you later, tell him to make you an offer!
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory