Louis Tomlinson recently filed for joint custody of Freddie Tomlinson with Briana Jungwirth, and a new source is claiming that the drama all erupted over Danielle Campbell. While it's been rumored that Freddie's mom doesn't want her son to be around the actress, another insider says that this drama isn't new. In fact, it started when Louis and Danielle first started dating.

"Before Briana got pregnant, she was bragging to friends about how serious she was with Louis. She thought it was going to be a real relationship. When Louis started dating Danielle, Briana was upset and that's when the drama started," a source told People.

"When she was pregnant he was very supportive and paying for all her medical needs. He bought her a house, but she wanted something bigger. Briana really tried to make the relationship work, and she became jealous when he moved on."

Yikes! Clearly Briana and Louis both want what's best for Freddie, so hopefully they'll reach an agreement. It may not even have to do with Danielle at all!

Do you think that Briana is jealous of Danielle? Click through the gallery to see more photos of Louis and Briana.