Looks like our guys have enemies or at least they aren't too interested in making friends. Note - I'm being deliberately vague as I'm not sure who's seen what so far.
Mal is, most decidedly, not
nice to some people. I recognize they needed to get a lot of people introduced and rushed them together, but there's little backstory, except for Simon and River. Shepherd is mysterious; Kayla seems a bit underaged. The other two (names escape me) are married (oops, there's a third, Jayne, who's weird, and a fourth, the companion, whose name escapes me). Sparks will fly, I am sure. I bet fan fic writers 'ship about every possible combo out there.