Would you leave your spouse if he/she became too fat?

A lot of people get divorced, we all know that. It seems that the lack of sex appears to be a big issue and a factor in the divorce. Many of those getting divorced say it is because the spouse got really fat and it became a turn off.

How big is too big before you lose interest? 20 lb, 40 lb? Doesn’t matter? Would you be considered shallow if your spouse gained 100 lbs and you didn’t want to indulge?