At first, Puck seemed like a sworn enemy of the Glee club. He played football and bullied Kurt.
While he still goes back and forth from tough jock to gleeful singer, there's clearly a soft side to this character. He's proud of his Jewish heritage and crushed on Rachel briefly.
He also knocked up Quinn. That was a big mistake.
I'm gonna miss all of you. I love you guys.Puck
Dude, my bowels have better moves than you.Puck