So I've been exchanging quite a bit eye contact with this woman at the gym I go to. I'll catch her looking at me and vice versa. This has happened briefly on 3 separate gym visits. The thing is, today, after this 3rd time, it clicked with me that we had matched and chatted on a dating app last year, but the conversation fizzled or just didn't go anywhere.

Wondering how to approach her, since there seems to be some mutual interest.

"Hey, I don't mean to be weird, but did we match on a dating app one time?"

Or play dumb, just ignore that and be like:

"Hey, I've seen you in here a few times. I think you're cute and wanted to meet you."

Don't really care if this doesn't work out or go anywhere, but just wondering how I should approach and if I address the unspoken elephant in the room when I do.