Flirting advice?

Okay so a little background on me. I was in a 3 year relationship where I was extremely mentally abused. He was extremely controlling and degrading. I've been single for 2 years now. I decided that it was finally time to start dating again so I got on bumble. I barely used it but I got a text from an old friend that he saw me on it. I never really looked at him that way because if my ex even had a hint that I liked someone he'd block them. So I wasn't really allowed to talk to him. But once I actually thought about it I realized that he's exactly my type... So I went on bumble to see if he swiped on me.... We matched and so we started talking. We've been talking nonstop for about a week now. He hasn't really been flirting and I don't really know how to flirt. Does that mean that he only thinks of me as a friend or is he scared of being rejected? Is a week too soon to know?

Also how can I flirt? I've definitely shown interest by telling him that I I enjoy talking to him and asking questions about the things he likes. Is that enough?

Please help... Its been 5 years since I have had to go through this...