"It was a heat of the moment..."
With first notes of the song Gabriel who chilled on the backseat of the Impala immediately went tense, eyes wide. Sam hurried to change the radio station, fighting unwanted flashbacks but there was a distinct flap of wings and Gabriel was gone.
It's not like they never acknowledged their past. They did, actually, and Gabriel apologized for what he has done, not once. But they never had a direct confrontation like this, like a slap in the face.
Dean surprisingly did not comment, was going to say something but changed his mind under Sam's heavy stare.
When they were back in the bunker Sam half expected Gabriel to not show up for at least a few days, but when he entered his bedroom - their shared bedroom - he saw a dark silhouette of the hunched over archangel on the bed. Sam didn't even say anything, didn't have time before Gabriel turned around abruptly. The archangel's eyes were red and puffy. Sam's heart shattered. He almost could read the archangel's thoughts, they were written on his face. Sam knew this look, has seen it a few times, and he knew. Despite being together for a few years already, despite all the words of love shared between them, Gabriel still thought he didn't deserve it. Not after all the wrongs he has done.