This document discusses theories of mate selection and complementary needs. It proposes researching whether homogamy (similarity) and complementarity both operate in mate selection. A study will examine if engaged and married couples perceive their partners as resembling their ideal selves. Interpersonal checklists will be used to measure how 36 engaged couples and 20 married couples view their actual and ideal selves and their partners' actual selves over weekly sessions. The results will analyze the degree of homogamy between partners' perceptions. Proper consent and non-discrimination will be followed.