Jenelle Evans' Epic Feud With Ex Nathan Griffith Implodes Amid Bitter Custody War — The Shocking Reason Why Exposed!

Not only are the Teen Mom stars fighting out an explosive custody war over 1-year-old son Kaiser, but RadarOnline has now learned that more drama has just entered the mix.

The 23-year-old mom — whose scheduled to travel to New York for an upcoming episode — is less than thrilled about producers insisting on not only taking Nathan along for the ride, but her ex's new squeeze, Jessica Henry, as well.  

“Producers have been speaking to Nathan about the Jessica going on the trip and they don’t want it to interfere with Jenelle’s no contact order,” the source revealed. “If Jessica goes to NYC, Jenelle can’t be in the same area as her. She can be arrested for being in the same area as Jessica.”  

Fearing the consequences, Jenelle is now demanding that Nathan "either leave Jessica at home, or stay at home with her and skip filming in NYC this weekend."  

But Nathan is far from backing down. “Nathan is throwing a fit that Jessica can’t go,” the source explained. “He wants a free trip. He claims to be sick of MTV, but then still piggybacks on their expenses.”  

How will this new drama affect their ongoing custody battle? Tweet us your thoughts!