[Katie]

You seem to be a family oriented person, so it's natural that you are seeking balance. You may have a cultural imprint similar to mine.
Explanation: depending of where we position ourselves, man or woman, we look for the missing social component in the counterpart. If the role that we want to fill in covers the missing bit, then we have a "DO", otherwise a "BE" or nothing.

Explanation by example: in my crossdressing years I have tried going with a guy a few times, always the same guy. I immediately realised that his being "bigger and taller" than me was a crucial part of the attraction I was feeling. I wasn't in love or anything, but since in that moment I was "the girl", and since my cultural background told me that women are the submissive side of a couple, then he HAD to be bigger or I would never "DO" him. This never happened with girls, where, since I am "the man" and culturally "I have to be dominant", I like smaller girls. I had stories with bigger girls but it didn't work for me as I was confused between being dom or sub. And this is also why I never had a thing for other CDs, that tend to be "men sized" and confuse my hormones.

So, when I see a small girl I see a "DO"
When I see a big girl is neither "DO" or "BE"
When I see a small guy I see neither "DO" or "BE"
And, if I am in the mood, when I see a big guy I see a "DO"

This is all true taking into consideration the Italian upbringing I can't leave behind as much as I try (and of which my wife is quite happy of). Different upbringings may create different mindsets.

That makes Sense!  

so to use your List but from My perspective:

So, when I see a small girl I see a "BE"
When I see a big girl is "DO" (or be DONE BY)
When I see a small guy I see neither "DO" or "BE"
when I see a big guy I see a "DO" (or be DONE BY again)

and that`s because I seek a counter ballance for my self that will assist in raising a family. have I understood you correctly?