Well my 2 cents is that if someone is constantly texting you and wanting a reply back immediately - that translates to me as being "needy, clingy and high maintenance" and I don't think you want that in your life! Good that you see it before you even get invested in the relationship. Just move on to the next one. I found that online dating required the patience of a saint at times but the payoff is there if you are persistent - at least it was for me!

BA