Well,i could see absolutely not beautiful women who had perfect handsome husbands,and vice versa.And,talking about womanizers,of course not,if men didn`t have too much attention(and women too)they will be more sensitive to someone`s seduction,than others,who used to attention,and they can fool husband(wife)more easily.Anyway,better,when couple have similar level of attractivness for more lasting and happy relationship.