Eh, I wouldn't worry about it. Way I see it, this is no different in "Terra-ized" or "Matched."Those ended on questionable grounds, yet still those two show hints of affection towards each other. Same can be said for "Be Mine."
But this episode was a kind of 'continuation' of terra-ized, and it cut off at that awful moment, without any comedy, it just showed Rae not being able to tell BB. Just the overall episode looked like it would be continued, because unlike matched and terra-ized, it didn't play out its own little storyline completely.