Castiel feels a strange combination of pleasure and revulsion at their current positioning. Both are gestures of affection and yet the last time they really saw each other they stood this way exactly, but with Dean on his knees in very different circumstances. Cas feels deep regret that that was the last they spoke in almost a hundred years, and yet is amazed that they can still stand here like this so full of unyeilding need of each other.

"There is something I have meant to tell you. Something I owe you." His eyes are sad, it could very well be an apology - he certainly owes one. It's not though and Castiel is sure that Dean will want to hear this even less, too little, too late, and without enough evidence to support the claim. Still, he deserves to be told, even if he won't believe it.