May the Sun Shine on Your Face [Destiel]

Michael has finally been defeated, wiped from the face of the earth, the burnt stain of his wings the only reminder of him left in the world. But as they're all celebrating, Dean Winchester can't help but notice Castiel isn't participating in the festivities, instead staring at the ground, a vacant look in his eyes that Dean had seen too much since they'd returned Jack Kline from heaven. The hunter decides to talk to his friend, and try to coax him out of this darkness the angel can't seem to stop falling down.
And maybe... maybe take advantage of the little peace they have? Maybe try to force out the three little words always tripping along his tongue?

*Spoilers for season 14*
*Alternate Ending to season 14*
*Characters belong to SUPERNATURAL and the CW, not to me. However the plot is mine*