Have you talked to a realtor about pricing your house in the event that you decide to sell it? Doing that might either a) reassure you that your situation isn't as bad as you think it could be, or b) tell you that you would lose money and then you could tell H that it's best for the both of you not to sell b/c a third-party said so. Just a thought. It could take the pressure of you for either not knowing what the possible outcome is or for seeming like you are doing this for (whatever H thinks is a negative reason for doing it, doesn't matter exactly what he thinks but it's apparent that he's thinking this is a negative).
