Farrah Abraham's Dad Wears A 'Team Farrah' Shirt, Reveals Why He And Debra Got Divorced In Teen Mom OG Reunion Part 2 Clip

The most jaw-dropping thing that happened on part 1 of the Teen Mom OG reunion is that Amber Portwood stormed off set when Dr. Drew bombarded her fiance, Matt Baier, with questions about his sobriety and his intentions with Amber. But according to this preview clip, part 2 will be a little bit more eventful—and that's probably because Farrah Abraham and her parents, Debra and Michael, are in the picture.

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In the preview clip released by MTV, Michael—who along with ex-wife Debra wore 'Team Farrah' t-shirts during the taping—finally reveals why Farrah calls him by his first name rather than "dad." He also gets really candid about his relationship with his daughter and explains that he "had a couple of confrontations with Derek Underwood," Sophia's father who passed away before she was born, and says that that, coupled with him emotionally abandoning Farrah, could have something to do with her sometimes acting disrespectful to her parents.

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Michael also confesses that "being on Teen Mom for five years is very stressful." He then adds, "Debra and I were going through a divorce which was another issue that marred Farrah." Then, when prompted by Dr. Drew to explain why he and Debra split up, Debra chimed in that it was "infidelity" on Michael's part. Whoa!

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Watch the clip above to see what else Michael reveals (and what got him so choked up), and tune into the second part of the TMOG reunion on Monday, June 8 at 10pm on MTV.

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Are you shocked that Michael cheated on Debra? Do you think Farrah was emotionally abandoned by her dad? Tweet us @OKMagazine.