Leah Messer and Corey Simms Divorce: Custody Battle Imminent?

Is a custody battle on the horizon for "Teen Mom" star Leah Messer and her soon-to-be ex-husband Corey Simms?

According to the Kanawha County Clerk's office, 18-year-old Messer filed for divorce from her husband of six months on April 14th, though she declined to state a reason for the split.

Us Weekly reports that the former couple have consistently fought over finances and childcare, though infidelity may have triggered the filing.

"Leah thinks Corey cheated," an anonymous friend told the magazine.

Hollybaby speculates that other factors contributed to the breakup, including Simms' purchasing a new truck with their joint finances and both Messer and Simms' verbal and physical abuse of each other.

The battle between the young reality stars is expected to get uglier, as Simms plans to ask for full custody of their 16-month-old girls, Aliannah and Aleeah.

A source told OK! Magazine that Simms' father vowed to "spend as much as he has to ensure that Corey gets custody."

Five days after Messer's divorce filing, she was photographed at the Charleston, West Virginia Airport with the twins and her mom. She has reportedly moved into her mom's home with the girls in Elkview, West Virginia.