Bree says a few weeks ago, she found out on social media that her dad got engaged to his 24-year-old girlfriend, Brooke. The 19-year-old says she was sick, embarrassed and confused – and also hurt that her dad, with whom she has a close relationship, didn’t tell her in person. Bree claims Brooke is a “scheming gold digger” and fears her dad is being taken for his money.

TELL DR. PHIL YOUR STORY: At odds with a family member?

But could something else be behind Bree’s dislike of her soon-to-be stepmom?

“Are you jealous of her?” Dr. Phil asks Bree?

“No,” she replies. “I want my dad to be in a relationship, don't get me wrong. I just don't think being in a relationship with someone that's only four years older than his only daughter is right. And, I don't think it's in a very adult relationship. And, I'm more aggravated than jealous that she’s reading my dad’s messages and stuff.”

WATCH: Man Says He’s ‘Caught In The Middle’ Of Daughter And Fiancée

In the video above, hear why Bree calls Brooke “very immature” and how Brooke responds. Will Bree convince her dad to dad to call off his wedding? Check here to see where you can watch Friday's episode.

TELL DR. PHIL YOUR STORY: Is your family a stressed mess?

19-Year-Old Says She Got A ‘Half-Assed’ Invite To Be In Dad’s Wedding