What went right: He had one big happy family to greet the two of them. JoJo sat down alone with his mother, and she was able to show that Robby's openness isn't fake. They are pretty close, which is a plus.
What went wrong: His ex came up a lot, which spoiled the night. His mother revealed that his ex's roommate said Robby dumped his girlfriend to be on the show. He went right to JoJo to tell her about the rumor, so she really laid down the hammer to get the truth out of him. He said it's not true, but JoJo might never feel sure because of how recent this breakup was.