Rob Kardashian celebrated his 31st birthday on Saturday.<br />Extra reports that he was showered with birthday wishes from family, friends and an one unexpected person ...<br />His ex-fiance, Blac Chyna...<br />Rob and Chyna have a daughter together, Dream Kardashian.<br />Chyna posted a picture of her and Dream on her Instagram Story with the message "Happy Birthday Rob from Dreamy and Chy." <br /> The couple called it quits in February 2017, have endured nasty legal battles ever since. <br />
