I know some people believe chemistry is determined within the first minute or whatever. No, I do not subscribe to that for myself. (It certainly may be true for others.)
I didn’t know if I was into the Brit until our second date. We had some sort of chemistry by the end of our first date, but I wasn’t sure if it was a really cool and unusual friend chemistry or something more.
I will say that if I don’t have chemistry by the second date, it’s not gonna happen!