Oops, that's gonna be awkward. Do you have similar hair colors?
I don't think she'll be creeped out though, more like flattered or something.

If you like the cut, I'd say keep it. It's your hair, not her problem.
However, if YOU want to change it a bit, cut some bangs and it will instantly become unrecognisable. Been there, done that.

Hope I helped.