"Teen Mom 2" star Chelsea Houska showed irritation over an Instagram photo of her daughter, Aubree, with her ex's on-off girlfriend Taylor.

In the most recent episode of the reality show, Chelsea expressed her frustration to her friend Chelsey Grace, questioning Taylor's motives for befriending little Aubree.

"Why are you posting selfies with my kid when you're not with the dad anymore and we're not friends?" Chelsea pondered, MTV reported.

According to the site, Chelsea sent a text message to Taylor, telling her to stop posting pictures of her daughter.

Taylor replied to the message, stating that it was Aubree who requested to see her and that the little girl should spend time with her sister Paislee.

Chelsea's ex Adam later made a statement by inviting Taylor to Aubree softball game. Chelsea just ignored the two and focused on her little girl on the field.

Meanwhile, ex-couple Leah and Corey have been clashing over different co-parenting issues, forcing the young dad to take steps to gain more custody of their daughters, Aliannah and Aleeah.

"We used to be able to co-parent - we used to co-parent great," the young dad admitted during a conversation with wife Miranda. "And that's because I would give in a lot - to the crap. And now that I actually stand up for myself, [it's] like the world's ending now because it's personal."

"I just really want what's best for the girls, and that's the main thing. That's my number one priority - what's best for the girls. They just need structure," Corey revealed.

On other news, other "Teen Mom" star Maci Brookout has recently moved in with longtime boyfriend Taylor McKinney.

The couple is reportedly preparing to get married and have more babies. They are expected to get engaged anytime soon.

"She has talked marriage with Taylor and is expecting a ring from him very soon," revealed a source close to the "Teen Mom" star.

"They're hoping to have two or three kids together eventually. She can't wait to grow her family with him," added the insider.