Not being at the top of his game at the time, Gabriel's expression, or lack thereof, passed Crowley by, not leading to any great revelations about the angel's moods or motivations. On this occasion, he took the Messenger's word at face-value. He'd helped Belial, so Belial's grateful lover would like to help him. A stupid notion, and classically 'angelic', but it made enough sense for the demon not to suspect anything further. Actually, he began considering how to manipulate that impulse to force people to help him by helping their friends. Anything to avoid thinking of how he'd helped Belial in the first place. He knew, probably better than the angel what it truly meant.

"All right," he muttered, not meeting Gabriel's eyes. "But make it fast."