Flowers Bloom Until They Rot and Fall Apart

Aziraphale and Crowley finally start to return to their normal lives after the near end of all things when Aziraphale starts to wrestle with feelings about his fellow fiend. Simultaneously, he starts to feel under the weather.

But angels can't get sick!

...right?

A hanahaki au for WhiteleyFoster's write this in your style challenge. This can also be found on ao3 under my name, Spinchling.
The title of this fic is from the song "Flowers" from the musical Hadestown.