The OW trapped him into this relationship. It's like a bad episode of Springer. He'll grow to resent her. He'll start to feel trapped.
He'll cheat on her. Because wherever you go, you can't escape yourself. He's had two affairs as a married man. His child his born out of wedlock and is the fruit of adultery.
Perhaps, God in his mercy, can shed light on their sorry situation.
You are free now. Take a deep breath. Take some time to grieve.
When you are ready, find a decent man, a man with character. A man who keeps his promises.
But remember the most important thing in Divorce Busting -- you are not defined by any man. You are going to appreciate life, every breath, in a new way.