“Are you in love?”
“Not yet,” says Cas.
“What’s - what’s that supposed to mean?”
Cas considers him.
“It’s just,” says Dean, “I kinda - you made me think like you’d say yes, man. I really thought -”
“You misunderstand me,” Cas says. “Or perhaps I should have answered more completely. I… am falling in love with you, currently. But I am not yet finished.”
“Finished?” It’s put an end to the look of hurt in Dean’s eyes, at least. Now he just looks confused.
“Well,” says Cas. “In love is something that sounds final. An end point, a… goal. But I am not at the end point yet. I can’t be, because every day I fall for you… more.” He clears his throat. “I notice something new about you, or you say something you’ve never said before, or you say something you have said before. The things that make me love you deeper are very diverse in nature.”
Dean, by this point, looks struck dumb. Cas continues, to fill the space.
“So I’m not all the way in love, not yet. I don’t know if I ever will be. But I am falling in love with you, Dean. All the time.”
Dean likes it. Cas can tell by the way he smiles down at his hands, as though at a joke, like he can’t believe it.
“Ask me,” Dean says. Cas doesn’t waste time pretending not to understand.
“Are you in love?” he asks.
“Not yet,” he says.