[Next thing you know, she'll be looking at two quantum redheads.]

I'm going to be the voice of dissent here and suggest that more drinking will produce the same result, with potential for increasingly worse results.

I think you may be assuming that you have everything in common with one another-- aside from the... obvious difference. But the two of you have most likely had some separate experiences and developed as people differently. So I wouldn't treat it as 'getting to know yourself' at all. Just... an extremely similar person.