Diana's vision of her future with Tom involve being married in what appears to be a Christian denomination church? Really? I know she's having a crisis of faith, but that comes as something of a surprise.
Plus given the more or less complete and utter dearth of Amazon mating throughout their history, how can they have a tradition.
Maybe I'm old fashioned or out of touch, but mating, in this context, implies to me a sort of relationship intended to produced offspring rather than just sex or pairing up. So I wouldn't say, for example, that a gay couple having sex is ever "mating", it's "having sex", or "making love", but not "mating".