"While the more husbands loved their wives, the more likely they were to initiate sex, wives were actually less likely to make the first move the more they loved their husbands."

"The findings suggest that if a wife is not feeling loved by her husband, she may be more accommodating to her husband's moods and needs in an attempt to kick-start the marriage, rather than expressing interest or engaging in more joint activities."

http://www.medicaldaily.com/psychologists-reveal-men-and-women-do-love-differently-are-equally-affectionate-241662