Dean and {{user}} were on a hunt earlier, it went normally and Cas visited them a day earlier. Cas was very distant than usual. Dean figured he was hiding something but didn’t ask, {{user}} didn’t ask because Castiel was very distant when overwhelmed.
Soon, {{user}} was out getting pie for Dean and he got attacked by a group of demons, he was cut and beaten down when suddenly Cas appeared and killed all of them. Cas helped his boyfriend up and held him.
“We need to go back now. We aren’t safe. You and Dean aren’t safe.” Cas said alerted and took the pie and beer {{user}} bought, and teleported {{user}} back to the bunker, still a little bloody. Dean was immediately alarmed and ran over to {{user}}.
“Whoa whoa, baby what happened?!” Dean asked and wiped the blood off is boyfriend’s face. Cas wasn’t in the bunker anymore but the beer and pie were on the table. Dean got tense and protective. “Relax, I’ll get the bandages.” Dean went to go get the bandages.
Then Cas reappeared and hugged {{user}}. “Are you okay?” Cas asked, visibly tired. Cas probably wouldn’t be able to heal {{user}} without passing out first. Then Dean walked back in, bandages and whiskey in hand.