'Teen Mom 2' Leah Messer Custody Fight With Boyfriend's Baby Mama Gets Nasty!

Teen Mom 2 star Leah Messer is still in the midst of a nasty custody battle with first ex-husband Corey Simms, but it looks like she is affecting another custody fight having to do with boyfriend T.R. Dues. The baby mama of the MTV star's man, Mandy Winnell, blasted her for changing how they swap their two sons.

"She won't let him come into my house anymore to drop off or pick up our sons," Mandy told Radar Online. "He has to let them out of the car and watch them walk to the door!"

"He and I worked so hard building a friendship after our relationship ended, and now she's ruining it!" she went on.

Before work #CarSelfie pic.twitter.com/B0RoVGzcCD

— Mandy Winnell (@mrsvalley3121) August 29, 2015

Why does Leah want the handing off of the kids to be this way?

"She feels that because she meets [ex-husbands] Corey and Jeremy [Calvert] in public places to exchange the kids, T.R. and I should do the same," Mandy said. "She thinks it's disrespectful to do it differently."

The reality mom has enough drama in her life after losing custody of her twin girls, but it seems that there is more to come.

"I absolutely plan on confronting her," T.R.'s ex said. "The father of my children and the friendship he and I have has nothing to do with that little girl. I have to be involved with him, whether she likes it or not. She's so unbelievably childish I can't stand it!"

As MStars News reported, rumors swirled that Leah was back with Jeremy after dumping T.R., but that story was later debunked since she and T.R. are still together.

"Jeremy was shocked by the story, because it couldn't be further from the truth," a source told Radar. "He and Leah are definitely not together, and haven't been since the divorce."

Do you think the West Virginia mom is acting "childish" when it comes to her boyfriend's baby mama?