Wife having emotional affair part 2

[3kids]

Ok you all big problem in my eyes. I think I'm done. Picked the kids up today from school and yep just what I thought. OM is home. He spent the night in my old house and I can't take that. I want to call and scream at the wife to get the $&@@ out of the house right now. I did not offer the house to her for them to live in. Just her. She even has him driving my kids to high school sporting events.

I know I can't scream at her. But what is the correct course of action. Where is PM when I need it.

Please please please help going out of my mind!!!!!