The "Replacement"

Your tears fall so often they've formed an ocean as vast as the be-stilled horizon of the Arctic.
Forming an oasis so unreal, they've become the soothing liniment for your immortal pain.
To feel pain compensates little for feeling nothing at all.
Your heavy indifference on emotions has you cynical of this love.
The opposite of love is not indifference rather sadness, that the one to whom your affection is given loves not you but the one who preceded you.
You are the replacement.
The object of convalescing for him.