What did I miss? Ask him what? To marry you? Sell the houses? What?Joking...
Just wanted to add my -not so valuable- oppinion, we'been through this before... Going back to finding the reason why he left, almost 2 years ago, doesnt serve anything of the present IMO. I think you KNOW why he left and having an interest on a girl sure made it easier if you ask me. Also, people dont live their spouses when serious illnesses appear when they are committed. Or at least they shouldnt.
Stop excusing him and see him for what he realy is. That is the man you love, he is a weak, spineless boy, selfish and immature and you still love him and want him back. Nothing is wrong with that, except the "no-sex in the meantime" part... S