Kim, composite of all my loves,
less real than most, more real than all;
of my making, all the good and
some of the bad, yet of yourself;
sole, unique, strong, alone,
whole, independent, one: yet mine
in that you cannot be unfaithful.
Analysis
What I believe this poem is saying is that Kim is a composite of all Women, which implies that she can represent all types of Women, therefore he would not be unfaithful because everything that he would want would be in this one girl.