A recent study published in the Journal of Personality and Social Psychology, seems to suggest that a man's marital happiness is dependant on the way his wife looks.
Attractive wives make happy husbands. They were found to be much happier than men married to unattractive women.
The study which sought the opinion of more than 450 newly married couples found that men appeared to be far happier with an attractive wife. Men appeared to give importance to the appearance of their spouse for marital joy. Women, on the contrary, did not rate marital satisfaction based on the appearance of their spouse.
Attractive wives also felt happier in their marriage when they saw their spouse happy.