My Wife's Daughter is Ruining Our Marriage

Amethyst says she made a promise to her daughter, Kyrah, that it would be just the two of them together forever. But Amethyst admits she broke that promise when she married Dustin and had three sons. Now, 10 years later, Dustin says their marriage is in trouble, and his 15-year-old stepdaughter is part of the problem. Kyrah says she wants out of the house so bad she just runs away … not once, not twice, but nine times. Is she running because mom broke her promise? Or is she just feeling like a fifth wheel? Can Dr. Phil convince Kyrah not to run for the 10th time?