Blac Chyna and Rob Kardashian came together to celebrate Rob's 30th birthday on Friday. Despite fighting over custody of their daughter Dream, rumor has it that the ex-couple managed to keep things civil. "Blac Chyna was there, because they filmed it...She brought black and gold balloons and a gift. It was civil despite all the custody drama," an insider told PEOPLE magazine. The Kardashians and Chyna watched a movie together following the party, but Rob did not sit next to Chyna. Despite the distance, Chyna also wished Rob a happy birthday on social media.