Do you believe chemistry can be one sided?

I have never stopped to think about this before, until now.

You know the type of chemistry where you are instantly drawn to a person within moments of meeting them (call it sexual chemistry, lush, attraction, whatever)…

Do you believe that this instant type of chemistry can be one sided, or is it always felt by both?

I always assumed the other person felt it too, based on my own previous experiences. But I’ve never actually asked outright if the other person felt it instantly. I’ve always just assumed, or rather, “felt” that they were instantly drawn to me in return.