I was at the gym today and I got some serious dom vibes from this girl. She looked european in her mid 20s and she was kinda attractive. Anyways, I had my stuff on a bench and she comes asking "Can I use this bench?" I replied "...huh?" and she goes "give me your bottle", grabs it and goes "okay I'm gonna put this here" and moves it to the end of the bench. Then she sits down right next to me and starts doing her leg exercises, flexing her butt. I was a bit embarrassed in the moment, but I held my ground and continued my workout right next her. I noticed she looked at me a few times while on her phone. Now that I'm home, I'm wondering if this was a sign or I'm overthinking it.

Edit: Lots of comments - thanks for bringing some sense into me