One time I was meeting someone for a second date. I got a seat at a table outside. There’s a fence and a gate between that area and the sidewalk.

I see her walk by. She sees me. She waves. She keeps walking and is gone.

I’m have so many questions. I text her.

Turns out she didn’t know there was a gate in the fence there and thought you had to go like around the long way, but for solid moment I thought she was like aggressively standing me up.

We dated for a few years and are still friends.

Green flag. This is science girlfriend behavior