Mostly every couple starts marriage life at the beginning phase very well, after some years when life places struggles and challenges, then both the couple should consciously take steps taking opinion of both with due respect to others. After having kids wives feels satisfied and got struck into kids. But husband after taking equal role in raising kids, generally feel little lonely. Then both the couple has to take care of one another and regularly take together time and discuss about and share their feelings with one another, then there is a high chance of increasing affections. And always has to remember both are equal and have their own identities. There is a popular quotation that Men are from Mars and Women are from Venus. If you remind this quote, it will helps to understand one others feelings.
Mitta Yasoda