Or she just doesn't want to make it a priority. Why is he a jerk? Because he is physically attracted to healthy and fit body types?  I truly love my wife at many levels, but fitness and healthy body types (factored in for age of course) are a major part of my attraction....if that disappears I'm not sure I could get past it. If my wife likes to pound back the wine with her friends and eat and snack throughout the day and in the mean time, pack on a bunch of weight.... I have to just accept that? Hell no....I'll fight back to save the marriage and if she cares, she'll work at it.