Love is in the air!
Bates is a social media guru and is known for dating high profile women, such as Samantha Hayes and Reign star Canadian actress Rachel Skarsten.
Ridge, 24, has told Spy that the pair are "really happy."
"Tommy and I are dating and are both really happy. I stay with him in Venice and am splitting my time between LA, Sydney and Auckland," she said.
"I was in NYC for Fashion Week, and Tommy was there for work. It was great, I just popped over for the first few days before returning to LA for a week of meetings, events and spending time with Mum who flew over last week."
Ridge and Tommy met last year in LA, then spent time together when Tommy visited New Zealand.