I had a similar situation in the mid Eighties. My then wife had emergency surgery and I had to fly a leg from SFO-LAX. I told scheduling what was happening and they said that they couldn't find another body. So, I flew the trip, her parents accompanied her to the hospital. She never forgave me for working that trip.
Minor issues like paying the mortgage, car payment etc weren't that important to her. (Not that I blame her.) Aviation induced divorced came soon after.
I was on probation at the time and felt that I couldn't push the envelope, so I went to work. Fast forward to 2003 when my wife had her gallbladder removed, I took advantage of the family leave act and stayed home to take care of my wife and 2 kids.
Be proud of your husband for doing what he thought was right! I resigned from my last job because of scheduling policy's and sold cars for awhile until getting back into the game.
Things will work out for him too.