The final part of the Real Housewives of New Jersey aired this week, and Joe Gorga was asked whether he believed that his brother-in-law Joe Giudice cheated on wife Teresa -- and Joe says he does.

"I did, but she didn't believe it, [so I kept quiet]," Joe told host Andy Cohen.

"Everyone believed it because from seeing the tabloids, and blah blah blah," Teresa chimed in. "Well, this is your brother, so this is more than the tabloids."

Joe also says that he never confronted his brother-in-law about the rumors. "No, and I'll tell you why. Because it wouldn't be nice. It wouldn't be nice. So if my sister was happy and she believed it, I stayed away. But if my sister called me and said, 'Joe, I need your help,' then it would have been game over," he explained.

Teresa and Joe Giudice announced weeks ago that they would be divorcing after more than 20 years of marriage. During last week's reunion episode, Teresa admitted that she no longer found her estranged husband attractive.