A/N This is gonna be a series of unrelated Destiel drabbles that I write based off different songs in my iTunes. Enjoy! :3
Grenade (Bruno Mars)
Castiel knew he would do anything for Dean. He would belittle himself and do menial tasks. He would risk his life and the fate of the world if Dean willed it. He would protect Dean no matter what, all for love. Even if he had been turned down the one time he made his feelings known. Castiel understood that Dean couldn't love him- Castiel was too strange, too inhuman- but t didn't stop him from loving the Righteous Man. He tried not to make it too obvious of his disdain for the women Dean insisted upon sleeping with. He even made sure Dean wasn't busy with a girl before he flew into Dean's room at night, except for that one time, when Dean had been copulating with a demon. Dean had been mad at first, had told his angel to 'fuck off' and seeing no other option, Cas smote the demon then and there, with Dean still balls-deep inside of her. Once Cas had explained he was NOT on a crazy jealousy trip Dean's cheeks had colored slightly and he had nodded, unwilling to look the other man in the face. Castiel had left soon afterwards, his desire to please Dean stronger than his desire to stay near him and hold him.
Sometimes, Castiel was sure Dean was punishing him for being in love- or at least for telling him. Dean would ignore him whenever he came by just to check in, and would speak only cruel words for months at a time. The angel didn't really mind. He knew that was just how the human was. He was a surly son-of-a-bitch and you could go screw yourself if you didn't like it. The problem being, of course, that Cas did like it. Entirely too much, if you asked Dean himself, or any of the angels in Heaven, all of whom kept their eyes on Castiel, most willing him to leave the human, sure he would eventually be broken by the gruff human. Dean didn't know that- but Castiel did. He knew his brothers and sisters didn't approve and just wanted him happy- but he was happy as long as he could serve Dean. He would- and has- do anything for Dean, just to see Dean smile, or just to know Dean was safe.