It could also be a ploy on her part. Maybe she knows who you really are and has had a crush on you; hoping you would ask her out. Maybe she thinks society says she can't ask a guy out so this was just a clever ploy to get the ball rolling from you. Maybe she was expecting you clear the "mistaken identity," but you rolled with it and it back fired. So then she said Natalie expecting to through you off. Maybe she likes that you were quick enough to think of a reasonable backstory.
I say come clean. If this was just a clever ploy to get you talking to her, you have a new babe and she gets what she wanted.
If she actually thought you were somebody else, it seems she might like you anyway.
If she really didn't know and feels embarressed by the truth to the point of anger at you; tell her the reason why you couldn't say you weren't Nick was because she was too lovely and sweet to let her down. Flattery can sometimes snuff an anger fire. As long as it is sincere and not vulger. You know don't tell her I pretended because "you have a nice rack and I wanted to spend time with them." Ya, that one doesn't go to well.
I say come clean. If this was just a clever ploy to get you talking to her, you have a new babe and she gets what she wanted.
If she actually thought you were somebody else, it seems she might like you anyway.
If she really didn't know and feels embarressed by the truth to the point of anger at you; tell her the reason why you couldn't say you weren't Nick was because she was too lovely and sweet to let her down. Flattery can sometimes snuff an anger fire. As long as it is sincere and not vulger. You know don't tell her I pretended because "you have a nice rack and I wanted to spend time with them." Ya, that one doesn't go to well.