Right?? I was like omg Puck, that's so sweet! And it made me laugh, too, when I was so bummed for most of the episode. And yeah, I agree with you, I think he's still like Sally Field with her "You guys really like me" speech, it's like omg they want me here, I actually am liked instead of just being Kurt's boyfriend!
And omg, I can't believe how sad he was! I was like omg baby, it's OK! I am glad it ended okay.