He’s married and I’m married

I got back with an ex from 10 years ago who is also married. We decided to rekindle our relationship and ask our spouses for a divorce (background - I already wanted a divorce, was waiting for holidays to finish to time. He said he had wanted a divorce as well.) Here’s my dilemma, he’s married but had an affair with a woman who has two kids with him. This means I’ll have to deal with the wife and with this other woman. He says he hasn’t been with her for years but has told me countless stories of him going back and forth between those two women. He says he’s madly in love with me and that’s why he’s kept track of me for so many years through Facebook (stalking, lol.) what do you ladies think? Run like hell or give it a shot?