Ronnie and his son, Shawn, have been living with Crystal and her daughters for the last 10 months. He says she invited them into her home when she learned they were almost homeless and that the teen might be placed in foster care. Ronnie claims that they’ve become like a family and that he does many things for Crystal out of love.

TELL DR. PHIL YOUR STORY: Conflict so big it needs a Dr. Phil solution?

Crystal, however, says she believes Ronnie has become obsessed with her and refuses to leave.

In the video above, hear one of their recent fights where Ronnie asked whether she was having sex with his son. Why does Ronnie say he asked the question?

WATCH: Woman Says Roommate's ‘Obsession’ With Her Is Interfering With His Parenting

On Thursday’s episode of Dr. Phil, Dr. Phil tries to get to the bottom of Ronnie and Crystal’s relationship. Has his behavior gone too far? Does she have feelings for him that she’s ready to admit? Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Family member or friend causing ridiculous drama?

Two Things 16-Year-Old Says He Wants From Dad Who He Claims Neglects Him