The prerequisite to romancing real women is acknowledging that Persona's ten conversation barrier is only out of circumstance (gameplay and consistency). While one may find it offensive that the series puts forth a stereotype that a relationship can be built and sustained on a basis of ten conversations and never any more, do know that there are some women - often dubbed "easy" - that this stereotype flatters. Depending on your target, the social link process adapts, ergo the prerequisite.