The only reason girls get fat in marriage is when the husband is not active.....if u are in shape and going to the gym everyday that lifestyle will threaten hers she will be thinking "my husband looks fit and determined if I gain weight he will lose interest I have to keep up with him" and the other thing is if she gets fat show a little attitude toward her..she will think u lost interest it's all about setting the bar high.
Nonsense. The truth is Somali women get comfortable when they get married/have children and don't watch their weight.
I've seen the exact scenario @Wei is describing play out too many times for this not to be a trend.