We know what you are doing calling a girl to have get-acquainted drinks at 9:30 p.m. You are hoping for booty from a girl you hardly know. It is an insult. She knows what you are doing, all women have met your kind before, and tells her co-workers, "I can't believe there's still a guy on earth who thinks this ploy will work. He thinks I'm real easy or that he's just so irresistible I won't be able to stop myself." Then she tells you yes and meets you, getting her revenge by shaming you into paying for her dinner. And there should be shame on you. Why are you asking out a girl when you are too lazy to set up a real date and too cheap to pay for her dinner? I hope this happens over and over until you 'get' what's wrong with your behavior.