Here's my two cents.
MEN and WOMEN may stray to affairs because the love between the TWO is not there. By the time one or the other sees that, they are usually married and then feel trapped and just "settle". They can stay ina marriage because they don't want to hurt the child/children they created. And that's all fine and dandy. But once the child/children grow to be adults and go their own way, you both find yourselves to be two very lonely and perhaps bitter people. Once two people find love and FEEL love between the TWO of them, I can't see any of them straying from one another. Hoepfully, they find each other and THEN raise a family. But it doesn't always work out that way. Especailly when people take on the work and responsibilty of marriage at a young age.
One person cannot make a love relationship work when they are working alone/solo. They will slowly die trying. You can't FORCE a person to feel love for you no matter how bad you want them to feel the way you may feel for them. This is an extrememly hard lesson in life to learn, but harder to accept.
Like the saying goes...It takes two. When two people truly love each other, the work and resposibility of marriage isn't work at all. It's a responsibility, yes. But it's not "work" so to speak. It's an honor rather than a job.
I'm not making light of your pain, Yeru. I'm just spilling my feelings to try and give you my view of the question you asked.
peace,
somebody