Castiel has contracted a very rare disease in Angels. He has an intense love for his friend Dean Winchester. It burns so bright it could light up a thousand nights. All the stars in the sky could not compare to the torch he holds, but the angel is growing weak. There was a reason the angels had been forbidden to love the mortals. Sam, Dean's younger brother, has began to notice that sometimes Castiel leaves bloody flower petals in his wake. Unfortunately for Cas, only he can do something about this. He can tell Dean all his feelings, or he can return home to Naomi's wrath and plead for her help to remove his love for Dean- this was a last resort really. If Dean doesn't love him that way back his fate is sealed either way. he could let his love for Dean slowly kill him to preserve the profound bond of their friendship.