A Backwards Proposal (слэш)

On Monday, Crowley got himself as drunk as he possibly could, and screamed long and high into the void. He passed out around noon on Tuesday. On Thursday, Crowley threw himself out of the window in his living room, as he took the latter option of fight or flight very literally.
An encounter with a bride-to-be puts an idea in Aziraphale's head. Crowley doesn't react very well.