Melissa’s parents, Donna and her ex-husband, Mark Senior, say they have no idea why their 26-year-old daughter left home several months ago without telling them.

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“Mother, I had very strong urges to hurt you, and I had to leave to keep you safe,” Melissa tells Donna. Watch the video above to hear Donna’s response.

WATCH: 26-Year-Old Admits She’s Been Hiding ‘Deep, Dark Secrets’ From Her Family

And later, Melissa says she has also harbored “violent urges” toward her father and brother, Mark Junior. Find out why in the conclusion of this two-part Dr. Phil airing Tuesday.

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