Chelsea Houska and her daughter enjoy lunch with friends during tomorrow's Teen Mom 2.

Chelsea Houska Isn't Pregnant, But She Is Welcoming A New Addition To Her Family

During their outing, which followed Aubree's preschool graduation, the reality star revealed to her friends that Adam Lind, Aubre's father, hadn't showed up.

"Before her graduation, I had told Adam about it, and I was like, 'He's going to forget,'" Houska recalled to her friends in a sneak peek shared by OK! Magazine on Tuesday. "Then, I get a text from him and it’s like, ‘How could you not tell me about her graduation?’ I scrolled up one text, screenshot it and sent it back to him. He sounded like such an idiot!”

Adam Lind Tries To 'Soften' Chelsea Houska Before 'Teen Mom 2' Custody Battle

While things between Houska and Lind remain strained, her relationship with Cole DeBoer is better than ever, and prior to Thursday's episode of Teen Mom 2 being filmed, the couple decided to take the next step in their relationship and move in together.

"He's still so nice. We just get along really go. It's been almost 10 months... He's moving in," Houska told her friends.

And apparently, Aubree was completely on board with her mother's plan. In fact, she told her mother of her plan to start calling DeBoer "dad" once he begins living in their home.

"She said she wants to call him dad when he moves in," Houska revealed.

For more Chelsea Houska, tune into Teen Mom 2 season six on Thursday nights at 10 p.m. on MTV.