Girls, how do I fix this?

So there's this girl at work that I haven't formally met but we know each other's name just working in the same area, well I've been to shy to conversate, therefore never formally asked for her name, well I just greeted her and genuinely felt a connection with how down to earth she is, and she's done some friendly gestures when passing by me. Anyways, one day after work she said "good night- followed with my first name" & since I already knew her name, out of shyness and nervousness with how cute she is, I said goodnight and hesitated pretending I didn't know her name (cuz she never gave it to me personally) so we just laughed it off after she gave it to me! I guess I never gotten shy before with talking to girls, but when she's around she just makes me smile, anywho did I mess it up, don't want her thinking I am not interested enough to remember her name, in fact I think she's super gorgeous, anywho did I mess it up? Lol

Girls, how do I fix this?
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