Do married men ever leave their wives for a woman they love?

Yes, it has happened often enough.

The problems are:

They might not, as they might want to avoid divorce, alimony, child support, etc.

They might not really love the other woman. Men easily separate love and sex, and many men lie.

Even if they do, they will probably leave the new woman someday not too far off. Remember, they loved their wife once too.

ANSWER:

Yes there are some married men that leaves their wife for another woman. Some thought the "grass is more greener on the other side." Married men who cheat and stay with their wife has a soul and a conscience and try to change. But I'm not sure if those married men that cheat and decide to stay do still love their wives. They are the only one that can justify that question.