Would it have been possible to have a Platonic relationship if you lived before the time of Plato?

Yes, but they would have called it a Gronkonic relationship, after Gronk, the leading caveman philosopher (and used-dinosaur salesman) of the Neolithic Era. (Sadly, if not ironically, he and his wife Shag lived in adoining caves.)

Yes,it was called a Play-Doe relationship.

Sure. There must be some men on men action back then too.

You know that Plato and Socrates were gay, right?

Yes if you knew a friendly Wolly Mammoth

actually, the correct spelling for Gronk is GrnG...since they didnt have vowels and the letter C in the time of the cavemen.

Yes, but they wouldn't have known what to call it !

up your butt F U