Crystal says when she met Ronnie 10 months ago at a bar, she learned that he was practically homeless and that his 16-year-old son might be placed in foster care, so she says she invited them to move in with her and her 6- and 12-year-old children. Now, she says Ronnie has become infatuated with her and refuses to move out.

TELL DR. PHIL YOUR STORY: Drama queen or king in your family?

“I have a crazy obsessed stalker living in my home. I’m afraid someday he might snap,” Crystal says.

She claims Ronnie has broken into her phone, sabotaged her relationships, won’t stop staring at her and watches her while she sleeps, eats and watches TV.

WATCH: Man Says He Takes Care Of Roommate Out Of Love, She Claims He's A 'Crazy' Stalker

Ronnie says he is not a stalker. He says, “Nine out of 10 women would kill for a guy like him.”

Crystal says she has attempted to kick out Ronnie numerous times but he won’t leave. She says she asked him to leave again one week ago, but he wouldn’t and things escalated.

“I chased him out of the house with a knife,” she says.

On Monday’s episode of Dr. Phil, hear from Ronnie. Does he believe his behavior has gone too far? Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Conflict destroying your relationship?

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