MTV's hit show Teen Mom is coming to an end and the final episodes are going to be emotional.
And now Tyler, 20, admits that he often questions their decision about not raising the little girl themselves.
"I would lie to you if I said I didn't regret it sometimes," Tyler tells Catelynn in a teaser clip from an upcoming episode.
"I was literally petrified about being the sh***y dad that my dad was."
Tyler's father Butch Baltierra is married to Catelynn's mother April but he is currently in jail for assaulting his wife and has fought a battle with addiction for many years.
As OK! previously reported, Catelynn has said she will adopt her six-year-old brother Nick if her mother falls of the wagon again.
"I pretty much saw my mother drunk every day and had to grow up really fast," Catelynn said. "I know my mom loves her children. But when it comes to addict parents, sometimes they love their drug or alcohol more than they love their children. I'm not going to let my little brother get harmed."
Fellow Teen Moms, Farrah Abraham, Maci Bookout and Amber Portwood will also bid farewell to the show that gave viewers a glimpse into their lives as they struggled with raising a child as well as growing up themselves.
In final scenes, Maci tries to plan Bentley's third birthday but argues with ex Ryan Edwards over the plans and Amber and Farrah both find it difficult being away from their daughters but for very different reasons.