Is she wrong!!!!!!!!!!!!!!!!!!!!!! Loving a married man?

i have torn feelings about this my friend is seeing a married guy married 19 years, her single and no BF. now here is the ?. is it ok if he is truly not happy and don't want to be with his wife but stays for the kids. she said he has left before 3 times but she begged him back. i see her side she really likes him and he makes her happy and i see the moral side thaw shalt not you know. i also see that you can't take what don't want to be took! who's to say they weren't meant to be together and will be happy if they get together one day. I do believe in happy endings. I know this is going to make a lot of married women mad but it happens. i also know there are people out there right now in the same situation and are in love with a unhappy married man. i would have to say if u do get mad at this post and say mean stuff you insecure in your marriage or with your significant other.