Lindsey was free to think whatever he wanted, especially concerning Gabriel's past with the Winchesters. It wasn't exactly something he liked to dwell on.

"You, too, huh? It doesn't seem to be too rare of a thing." Yet, what Lindsey says next is a tad bit troubling. No one knows what happened to them? He looks around at all the others there. Perhaps it was the same thing that had happened to him. Perhaps they were just... momentarily gone or something.

He looked back to Dean. Or something. "How long ago did he vanish? Was he acting funny? High and mighty or something?" Random questions followed by a very serious look about the Trickster.

Excuse him if he's wondering whether or not he was the only archangel here. Definitely gonna have to go back and check up on old Dean-o.