1. Firm commitment never to divorce, no matter what. If both husband and wife, out of respect for marriage, would rather be miserable than get a divorce, then they have a motive for making life less miserable and working on problems.
2. Commitment to making the home life pleasant by not giving reign to bad tempers, anger, indifference, etc. This would manifest itself by things like:
"I missed you."
"Thank you for bringing the car around so I don't have to go out in the rain."
"This was a delicious meal. You are a good cook."
"You look handsome."
"You look beautiful."
"Can I get you a beer?"
"Would you like some more coffee?"
"My wife does an amazing job of managing the finances."
"My husband is great about maintaining the cars so I always feel safe."
So am I on to something? Wouldn't these two attitudes with God's grace make a happy marriage?