Should I ask her out?
So I have had this irrational crush that keeps reappearing even after I seem to have conquered it and forgotten about her.
I (27M) was a TA in her (23F) physics recitation for a semester. During the time I was her TA everything went normal and I didn't have a contact with her outside the classroom. I obviosly noticed her (she is beautiful) and rembered her face.
Months later I keep seeing her at the university gym where I usually go to work out since I am still in grad school. I usually ignore my former students when I am on campus, because I am bad at remembering faces and names, and I don't want to offend or seem rude to some of them, so I am rude to everyone equally instead lol. I know it's stupid but she has this light to her that makes me feel warm and fuzzy.
I have changed gyms, partly because of this, and there have been periods where I haven't seen her for months. Recently due to my schedule, I have been going at the university gym, and in various instances I have seen her there. We made eye contact and said hi on multiple occasions. The first time she blushed (I probably did too). I didn't expect this to still be a thing for me.
During this time I have dated other women, but whenever I see her at the gym I feel the same way about her. It's very irrational, and I don't want to look creepy if I express interest in her beyond acknowledging her at the gym. On the other hand, I don't want to regret not doing it. What should I do?