Most Helpful Guy
Most Helpful Girl
Look, if he's with you because he's unhappy- then you've got a problem. If he's with you because he likes the thrill of the 'other woman'- you've got a problem. If he's with you because "you're the one soulmate that he just met too late- you've got a problem. Because no mater what happens- if he leaves his wife or stays with his wife. The damage is already done. You'll be upset if he leaves because he'll be dealing with mountains of guilt or be upset that he let down his family and no longer has the friendship of his wife. And if he stays with his family- you'll be upset that he's still with his wife. So it's going to be hard- but the easiest way is to leave.