Remember that time Celaena thought Rowan and Gavriel were lovers?
When we first meet Gavriel Celaena thinks he didn’t get any food, and brought some up to Rowan’s room to give it to him.
“Balancing the heavy tray on her hip, she knocked on his door. The murmuring within went silent, and for a second, she had the mortifying thought that perhaps the male was here for a far more intimate reason. Then someone snapped, "What?” and she eased open the door wide enough to glance in. “I thought you might want some stew and-”
Well, the stranger was half-naked. And lying on his back stop Rowan’s worktable. But Rowan was fully clothed, seated before him, and looking pissed as hell. Yes, she had certainly walked in on something private.“