I agree with Moma, but I'd go even further back from when you lose the girl, to figure out why you lose her. If you really build the "great attraction" you think you're building, you won't lose her.
You probably have your openers, beginning routine down, but somewhere in the middle you're either not building enough attraction, or working too long/hard at building attraction and doing more than is necessary, thus inevitably scaring off your target.
You probably have your openers, beginning routine down, but somewhere in the middle you're either not building enough attraction, or working too long/hard at building attraction and doing more than is necessary, thus inevitably scaring off your target.