NM - Never mind the R, he has an obligation to keep a roof over the head of his children. Although of course you would never do this, how would he manage if YOU ran off and left him to deal with the three kids, childcare, etc.????
Before you do ANYTHING, go see a lawyer, okay? If H isn't going to be bringing in much money in the near future, it might be that continuing to live in the house is the only financial support you will get.
Also, remember that he's sick, probably on pain meds, and may not be completely in his right mind right now. So I would take anything he says right now with a grain of salt.
