Tyriq Withers and Chase Infiniti are reportedly off the market ... and they're Hollywood's hottest new couple. A source close to Infiniti told PEOPLE that Chase and Tyriq are definitely dating. The insider explained ... "Chase is having fun and dating. She's in a really good place and enjoying herself like any young woman." They've been photographed together at multiple events in the past few weeks ... like at GQ's post-Met Gala party, and the Audi garage at the F1 Grand Prix in Miami earlier