IIRC, there was an interview somewhere that said they'd deleted some stuff in the pilot episode that indicated that there was an affair going on between Stokes and Willows. I haven't seen the first ep since I heard about that, to see if I noticed anything though.

I don't mind a bit a flirting, they're all human, but it's just when TPTB make that the raison d'etre for a character (usually the female half of the couple) I get pissed.