An insider tells Life & Style that after publicly confirming their split, Teen Mom 2’s Kailyn Lowry and Javi Marroquin are gearing up for a custody battle.

While Javi is currently deployed in the U.S. Air Force, “Kailyn is trying to get full custody for their two-year old son, Lincoln,” the insider says.

“Kailyn plans to tell the court she believes Javi is a cheater and she has been the one fully taking care of their son while he’s been away,” adds the insider.

RELATED: Louis Tomlinson’s Baby Mama Reportedly Bans His New Girlfriend From Meeting Son

However, “Javi thinks he deserves custody,” the source explains. “And he’s spent the past three years helping co-parent Isaac [Kailyn’s son, 6, with ex Jo Rivera] and thinks he deserves partial custody of him. He’s ready to fight.”

RELATED: See Which Celeb Couple is Shockingly Back Together After Divorcing!

In Touch was the first to break the news that Kailyn and Javi were splitting.

For more updates on Kailyn and all your favorite Teen Mom castmates, pick up the latest issue of Life & Style, on newsstands now!

ls june 20 cover