Happy Marriage Without Sex, Is It Possible?

I was surfing the internet when this link popped up on my screen and it is about sex in marriage. What I found out is amazing and at the same time scary. I can imagine what is going on in your mind right now. Many couples have divergent opinions about whether it is possible to be happy in a sexless marriage or not. It's no news that many marriages have collapsed due to lack of sex in marriage. Lack of sex in marriage often leads to having extra marital affairs and sometimes divorce. Please share your opinion, experience or advise on how to be happy in marriage without sex.