Teen Mom 2’s Leah Messer and Jeremy Calvert finalized their divorce and custody agreement for daughter Adalynn on June 8, but In Touch has learned that Jeremy might be having second thoughts about the agreement.

leah messer

(Photo Credit: Scott Gries for In Touch Weekly

Mandy Winnell, who has two sons with Leah’s new beau, Theodore “T.R.” Dues, tells In Touch Jeremy might fight Leah for custody.

“He said she’s a bad mom,” Mandy tells In Touch. “If my kids are with her, they won’t be taken care of very well.

RELATED: Did Leah Messer’s Painful Childhood Lead Her to Rehab?

“I hope Leah doesn’t start drama,” Mandy continues. “I’m not known to be very nice, so we need to stay on each other’s good side!”

For more on Leah Messer’s divorce and rehab stay, pick up the latest issue of In Touch Weekly, on newsstands now!