My Husbands Daughter who has not had contact with him for over 30 years.  She is 32 years old and contacted him out of the blue. They now are in contact non-stop ya know talk, text and email all day long, 24/7. They caress each other like kids and touch each other non-stop and there are no boundaries. He lies to me constantly and says he is working and he is with her.  It makes me so angry and jealous.
My heart can’t take it. She is married as well.  They are going on vacation for 3 days without their spouses. I ask him to leave. He does not pay attention to me.  What should I do?  Should I file for divorce papers?