However since not getting many second dates is very common, I think this often due to the nature of online dating.
Is this really the norm? I've never had this happen. Not to say that it won't in the future but I would hardly say it's the norm.
However it sounds like OP is having this happen a lot ( we will never know because this thread is like 7 years old). What that says to me is that, like others have expressed here, that more than likely OP is not representing herself in real life either physically or mentally perhaps both as she did online.