Gabrielle Union Not Getting Caught in Tristan Thompson Cheating Drama Union responded Thursday to an Instagram post from The Shade Room that shows her in the background of a photo of Thompson’s alleged mistress. Gabrielle Union The Daily Mail released photos Tuesday of Thompson with another woman in a New York City club three days prior. Thompson is the father of a newborn baby girl with girlfriend Khloe Kardashian. On Thursday, The Shade Room and TMZ released footage of Thompson and the same woman arriving at a hotel. Thompson was with Kardashian when she gave birth to their daughter on Thursday.