Khloé Kardashian and her boyfriend, Cleveland Cavaliers center Tristan Thompson, caused all kinds of engagement rumors when the Revenge Body and KUWTK star was caught on video wearing a diamond ring on that finger. The pair kicked off their date night in Los Angeles with a trip to one of Khloé’s favorite restaurants, Ruth’s Chris Steak House in Beverly Hills. Tristan doesn’t appear to be bothered at all that Khloe used to frequent this spot with her ex, Lamar Odom. Not that Tristan is in much of a position to complain about Khloé’s past loves. The basketball star just became a father when his ex flame Jordan Craig gave birth to their son, Prince Oliver Craig Thompson, on December 12, 2016 . Khloé, who has always been a very hands-on aunt to her sisters’ Kim Kardashian-West and Kourtney Kardashian’s kids, seems up for the challenge of Tristan’s co-parenting duties, even going so far as to visit three-month-old Prince with Tristan. Not that all the couple’s time in Los Angeles is spent babysitting! In addition to their romantic dinner at Ruth’s Chris Steak House they were also spotted leaving Lavoo Hookah Lounge last night.