Cas grimaced a little and shook his head. “it wasn’t my secrete to tell Dean.” Cas said firmly. “You moved on. You told me not to bother you anymore. You found a loving partner and settled into a life that didn’t revolve around hunting, trauma and alcoholism. How could I possibly ruin that? Especially when Sam himself told me not to say anything for your sake? Your brother who knows you better than anyone? I truly thought it was for the best.” Cas looked at the woman, feeling jealous that Dean had her in his life. He wasn’t sure if he was jealous because Dean had someone and he himself didn’t… or it was because she was in Dean’s life and he wasn’t. Either way, he quickly looked away from her, lest he feel the urge to do something stupid. Like snark at her. “I am sorry that I made the wrong decision Dean. I understand now that it was the wrong thing to do, but I really did think it was for the best… I’ve never heard you laugh you know. Not until you met… her.” he couldn’t help the hesitation. It wasn’t fair that he and Sam hadn’t been able to make Dean happy.