Is it weird that I still think about her even though she ghosted me?

I've never reached out to her tbh. She had a boyfriend and was a full decade younger than me, but we worked well together and she was just so much fun to be around. I remember that she was so much fun to tease, and she even got me back a few times. Still, it wasn't a relationship that I was looking for, and I'd like to think we parted as friends. My closure I guess. I know she's doing well and I hope she does, so why do I miss her?

Guess it's just one of those things, right?