I was lucky in that when I met the woman who became my wife, neither of us was looking for anything other than to get laid. Sounds crass, but I think it helped me avoid the "look for a female version of me" thing, because we are nothing like each other.

After spending the first few months pretending that we weren't, in fact, falling for each other, we gave into it and 15+ years later, still working on staying together :-)