Melissa and Dennis both say that their relationship of eight years is volatile. The couple admits that they have cheated on each other, engaged in physical altercations, argue in front of their grandchildren, and claim that they break up daily. However, Melissa says she will do “whatever it takes” to save her relationship with Dennis.

TELL DR. PHIL YOUR STORY: Betrayed by a loved one?

Dennis daughter, Amanda, says that her father and Melissa need to break up before they hurt each other or themselves. She says Dennis, who is still married to her mother, needs to stop hurting woman and take responsibility for his behavior.

WATCH: Man Admits He Is A ‘Mental And Emotional Abuser’

Why does Melissa say that she takes “full responsibility” for her rocky relationship with Dennis? And why does she say she blames herself for turning Dennis into a cheater? See her explanation in the video above.

And on Tuesday's episode of Dr. Phil, hear from Dennis’ current wife. Plus, on Wednesday, a fourth woman wants to confront Dennis. Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: At your final breaking point?

Woman Says She Wants Estranged Husband To Sign Divorce Papers And 'Leave Me Alone'