Can we just talk about a few things in the season two theme song? It fits the show much better then the season one theme song. But asides from that, I believe it has... Hidden messages.

I went through and took some screen shots as examples

First of this one with Claude.

"I didn't want to forget what I believed in anymore."

Claude's a demon, and unlike Sebastian, he was never human. So he doesn't have any emotion other then greed.... Or so it seems.

I think this line speaks a lot. I think it's saying that because of Alois, he might have started to feel protective. Yet, his demotic pride got the better of him. Because know emotions minus greed is all he's ever felt. This line almost feels like an apology.

Then, there's Grell with his stuffed Sebby.
"If you're not by my side, their very meaning blurs."
I think this says a lot more about his crush on Sebastian. It's not that he's lost in lust at Sebastian's attractiveness. He actually loves him. And he doesn't know what anything would be like without Sebby. This also might lead to reveal that mine and Coper's before reaper and demon theory for them might be true.

"Don't forget the days where we couldn't imagine a true "goodbye"."

They have the timing a little differently on this then they use to, but they used to show this line on both Sebastian and Ciel and Claude and Alois. But now it's all Alois and Claude BUT it still is there when it fades into Ciel and Sebastian. This line fits both Master-Butler pairs in a few ways, but I've always seen it more fitting for Sebastian and Ciel... After all...

I don't think Sebastian was quite ready for that "goodbye."