'Teen Mom OG' Confession: Amber And Matt Open Up About The Claims That He Has Seven Children

During tonight's episode, the two were blindsided when Gary made the surprise allegations.

For the better part of this "Teen Mom OG" season, Amber and Gary have been gearing up for a potential custody showdown over their six-year-old daughter Leah. But their co-parenting efforts took a turn for the worse during tonight's episode when Gary brought up claims about the past of Amber's fiancé Matt -- specifically, as seen in the scene below, the father of two presenting his ex with documents that Matt has seven children (something the Indiana native was not aware of until she was shown paperwork showcasing these allegations).

The bombshell -- and the way Gary presented his findings with an MTV crew in tow -- was unsettling for the engaged couple during filming, and Amber still thinks that her former partner's whole approach was "really tasteless."

"Gary had told me a couple weeks after that he actually had known for a while, which just tells me that he just literally waited for the cameras to be there," Amber (with Matt by her side) recently told MTV News, as seen in the clip above. "I think what his main goal was, was to humiliate us and to try to make our family look like it's not stable because this was when we were in the big custody battle."

So how many kids does Matt have? Watch the video above to hear the answer and how Amber and Matt worked to rebuild their relationship following this ordeal. Plus, find out how Matt feels about the entire televised incident in the clip below, and be sure to keep tuning in to "Teen Mom OG" on Mondays at 10/9c.