Puck sings “Sweet Caroline”…and Rachel’s swooning?

A new song preview video has been released for next week’s episode “Mash-Up,” in which we see bad boy Puck performing Neil Diamond’s “Sweet Caroline” with his acoustic guitar. His rendition is undeniably sexy, and even though most members of the glee club are cheerfully joining in on the chorus, a certain Rachel Berry pretty much just sits there swooning over him for the whole song – and it’s pretty clear that he’s got his eye on her too. Oh, and Finn may be a bit dumb sometimes (one word: DRIZZLE!), but he’s definitely picking up on this vibe and his eyes have “jealousy” written all over ’em (and interestingly, cheerleader Santana’s eyes say the same thing at one moment, even though I never realized they were majorly involved?).

What do you think of Puck’s new attempt at showing off his romantic side, Gleeks? And what do you think of the burgeoning possibility of a Puck and Rachel romance?