It sounds heart wrenching and sad, but probably exactly what you need to do. As you'll hear over and over on these boards, You didn't break him, You can't fix him. I notice you say OW probably. Guilt, even over a one night stand, often drives our H's over the edge. They decide the D was coming and what they did had nothing to do with it.
In fact, you probably drove him to it. Yes! That's it! It's all her fault!
He has to work through all these emotions, and believe me, pointing them out to him is a no no.
You try to keep your mind on you and your daughter. Keep going foward for the two of you. Easier said than done, God I know, but it's the most effective way for you to get through this.
