Have you ever had to contend with anything like this from your H before? From what I understand once they go all the way through and come out the other side of MLC tunnel it doesn't happen again.
How long do you think ow will put up with your H's health issues? He must have a hard time keeping up with her.
It's up to you of course whether if/when your H returns you want to try and work it out with him.
Look at it this way. With your H you know what you have. With someone new you're rolling the dice again.
I do understand where you're coming from with this line of thinking though. I think about it, too.