Crowley still felt awkward as hell, a huge part of him wishing he could take back what he'd admitted, another part knowing it might as well be out there anyway, and another part again wondering just why he felt so exhausted considering demons weren't supposed to feel things like tiredness. Clearly the stress of recent events had gotten to him more than he wanted to admit, not just the dreams from Lucifer, but the being outed, the entire situation ever since Kol had been possessed and Crowley had realized he bloody cared.
"Well... you're welcome." His tone matched Kol's, that same level of strange yet genuine that was hard to define, even to himself. That and he just didn't know what else someone was supposed to say when thanked for the admission he had made. There should be a guidebook for these things.