My, Oh My!
My first suggestion is----take a deep breath, and do some restructuring.
I viewed tints and shades of the world through you
Beheld by my eyes, a nurturing of memories
------------------------------------------------
My soul resides in an abyss of darkness.
In pretense as a friend, death awaits,
As for an ending to your piece----Uhhhhh---I can already see the ending with your last two sentences….What would be worse than to continue living in a despairing scenario?
Death won’t come----so it leaves you to endure…

Of course though, I’m slightly insane. So you might want to disregard anything I suggest.
Anyway----I like what you’re writing. It creates some good (dark) images. Love’s loss can be extremely cruel.
C.E.Vance
Carl