Teen Mom 2 star Kailyn Lowry isn't happy with Chris Lopez, the father of her youngest son, 5-month-old Lux Russell Lowry.

According to a new report, Lowry recently went on a rant against Lopez, who she dated for just a few months after splitting from ex-husband Javi Marroquin, claiming that her third baby daddy isn't nearly as involved in their son's life as she'd like him to be.

On Jan. 22, as revealed by Hollywood Life, Lowry shared a series of posts on Twitter, letting her fans know that while Lopez may be acting as if he'd like to spend more time with his son, he's "all talk."

“One thing I can’t f**king stand is a man who tries to make it seem like he’s trying to be in his kids life when in fact he barely does the bare minimum,” she wrote in her first tweet.

A short time later, Lowry shared two more tweets.

“You are not trying my dude,” she said, then adding, “All talk, no action.”

After experiencing marital trouble with Marroquin in 2016, Lowry confirmed her divorce and quickly moved on with Lopez. However, after learning she was pregnant with his child just months later, Lowry and Lopez broke up. 

Last year, during a special Teen Mom 2 episode, Lowry opened up to host Dr. Drew Pinsky about the hardships she faced due to her strained relationship with Lopez. At the time, after going through the majority of her pregnancy alone, Lowry confirmed that she and Lopez hadn't seen one another in a month. She also said that Lopez hadn't seen their son. 

“It’s kind of a hard pill to swallow,” she explained. “He cheated on me my whole pregnancy. The things I went through all the way leading up to having [Lux] is something I wouldn’t wish on my worst enemy.”

In addition to sharing her youngest child with Lopez, Lowry also shares two older sons with her previous partners, Jo Rivera and Javi Marroquin. Rivera is the father of her oldest son, 8-year-old Isaac, and Marroquin is dad to 4-year-old Lincoln.

Kailyn Lowry and her costars, including Jo Rivera, Javi Marroquin, Chelsea Houska, Cole DeBoer, Jenelle Evans, David Eason, Briana DeJesus, Leah Messer, Corey Simms, and Jeremy Calvert, are currently in the midst of production on the new season of Teen Mom 2.