This one guy moved to Laos to live with his niam mos ab. He was there for 5 years. They had a baby every year. He thought that would keep her faithful, but she ran away with a Hispanic guy as soon as they moved to the states.
No surprise. I've noticed that having a lot of kids doesn't keep a couple together. There are a few who got up to 7 kids, and the chicks still sought side dishes and new loves, detaching completely from the old men.
When the heart is young and wants to party still, no N number of kids is going to keep her from seeking outside.