On the notion of Thork's nonsense from the other thread:
Disney had to go down the interracial relationship route. There isn't a single eligible white guy in the universe. Only a black guy is virtuous and loyal and would stand up to the empire and is worth the leading lady's attention. Fuck Disney.
While Finn is obviously into Rey (and who can blame him, amirite?),
Depends on your taste in women. Bit horsey for me.

it's not like they had a romantic relationship in this movie. They might later on in the series, but until that happens, complaining about this seems awfully premature. Maybe Finn and Poe will have the relationship instead! A gay interracial romance!
She kisses him before she leaves to find Luke at the end. I don't think star wars are going to be able to pull off this trick again.

There is no way they are even half-brother/sister.
No, we're stuck watching a black guy pawing a white girl again. If we are going to be all liberal about it, why doesn't she end up with Chewy? He's tall, strong, reliable, single, no kids, an eligible Batchelor, and nice to cuddle at night. Why can't she end up blowing the wookie at the end of star wars viii?