08/22/2012 06:25 am ET Updated Aug 22, 2012

'Teen Mom': Maci Gets Mad When Ryan Doesn't Show Up For Her Birthday Party For Their Son (VIDEO)

Maci and Ryan just can't get on the same age on "Teen Mom" (Tue., 10 p.m. ET on MTV). That's mainly because she wants them to be sharing their lives together in a way that he's simply not interested in. And she's willing to use their son Bentley to try and manipulate things in that direction.

They'd already agreed to have separate birthday parties for Bentley, so why would it be a surprise that Ryan had no interest in attending Maci's party? Nevertheless, she had Bentley get on the phone and ask Ryan if he was coming, leaving him in the awkward position of telling his son he'd do what he could.

He didn't make the party, but did show up to pick Bentley up afterward, where Maci yelled at him for letting their son down -- although Bentley seemed fine with it. She even denied having anything to do with Bentley asking Ryan to come to the party.

The drama just isn't likely to improve between these two as "Teen Mom" continues on Tuesdays at 10 p.m. ET on MTV.

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