Was Emet Selch our boyfriend? (5.0/5.3 spoilers)

[Gothicshark]

But how did they "establish" these genders?

it was though the use of pronouns.

Was it just through use of a pronoun?

yes

We would need to establish that they procreated in a natural way to establish that genders mean a similar thing as they do to us. Created implies a creator. A concept in whose mind?

They were a form of Humanity, they weren't going to tell us what they did in bed, nor would we need it. They had male and female, they had children, that is all we need to know.