Teen Mom 3's first season may be coming to an end, but the drama between Katie Yeager and ex-fiance Joey Maes is far from over. Though the two have been broken up for some time now -- Joey even has a new girlfriend -- they continue to fight about their relationship (or lack thereof) and their 2-year-old daughter, Molli.
As seen in this exclusive clip from the season finale of MTV's hit series, airing Monday, Nov. 11, the Wyoming-based pair can't even agree on whether they should spend Molli's 2nd birthday together. Katie asks Joey to come to lunch with her so they can talk about it, but he balks when she brings up his girlfriend, Brigette.
"Don't f--king start talking s--t or this f--king conversation will be over," he says angrily.
"I'm not trying to talk to you about our problems. I'm trying to talk to you about our daughter's birthday," Katie argues back. "What I want is to spend the day together as a family. Not as me and you together -- all three of us, doing something for our daughter."
She then suggests going to Salt Lake City for the day, but he reminds her of what happened the last time they went away for the weekend. (Surprise -- they got into a fight!)
"The only time we fight is when a third party is involved," she tells him, referring to Brigette. "It's none of her business!"
Watch the argument above, and tune in to Teen Mom 3's season finale on Monday, Nov. 11, at 10 p.m. ET on MTV.