In March 2018, Stacey Esterly’s husband, Kevin, ran away to Mexico with Amy Yu, their daughter’s 16-year-old best friend and a girl whom they considered to be their “fifth daughter.” Stacey says that her husband’s closeness with Amy caused her concern starting eight months earlier when Kevin made a schedule for Amy that included her spending almost every night with their family, and after an incident during their family vacation.

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“There was a time we were inside. Amy was gone, and Kevin was gone, and here they were down at the beach taking pictures together on the beach. And I remember getting very upset with him because our girls are back here, I’m back here, but you’re down on the beach with Amy,” Stacey tells Dr. Phil during an exclusive interview airing Thursday. “I was very jealous, and I’ve been jealous for the last eight months because I’m his wife and I wasn’t getting the attention that I should be getting. Amy was getting more attention than myself.”

WATCH: How 45-Year-Old Man Met 16-Year-Old Whom He Ran Away With To Mexico

In the video above, hear more from Stacey, including a comment she claims Amy, with whom she once had a close relationship, made that “stunned” her.

Police arrested Kevin at a resort in Mexico and claimed he and Amy carried on a secretive relationship for months before running away together. The 45-year-old father of four is currently being held in jail on $500,000 bail, charged with interfering with the custody of a child.

On Thursday, Stacey describes the lies and betrayal by her husband of almost 14 years. Check here to see where you can watch.

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Facebook Conversation Woman Claims Her 45-Year-Old Husband Had With 16-Year-Old