NC as a bit embarrassed 
Over the last year, bubble arrangements during pick-up meant I sometimes swapped small talk with one of the teachers at the kids’ school. We’re both single and similar ages. Unfortunately I developed a bit of a crush, but realising that even if it were reciprocated, asking a teacher on a date would be a big no-no (wouldn’t be surprised if they get hit on by dads all the time!) tried to hide it, not appear like a puppy dog and keep interactions bright and brief.
Bubble arrangements ended, however I found myself still passing her on the way out from drop-off. Given we’d previously been chatting I’d say a quick “Hi” in my way out. Then, after about a week of this, I also asked if the office was open as I needed to drop off something. She told me no, to try in the afternoon and then added:
“I seem to see you a lot without the kids at the moment.”
I laughed, made a quip about them wanting to get into school as quick as possible and left. Inwardly though I was cringing. I’m never hanging about the premises on my own - I’m always either waiting to pick the kids up or dropping off and I’m actually rarely early. I felt that despite my best attempts to hide it and keep respectful, she’d realised I had a bit of a crush and this was her way of warning me off. Ever since I’ve been avoiding eye contact and staying far away.
What do you think? Am I overreacting? Why would she say something like this if it wasn’t along the lines of “I’ve got your number?”