Wow, really like the imagery, flow and rhyme of this piece.
The visual of a man looking through his gun sight still feeling love for her.
And the memories turning to cyanide. Comparing his heart to a tombstone really reinforces the sombre tone of the poem.
imagining her pain writhing on the fires of the dungeon of your mind and then going on to turn your bayonet in the fracture of her heart. Keeping that same theme running through. A body bag for a bed, pain and horror frozen like stigmata on your face quite ingenious.
I think it might have been easier to read if it was split into different stanzas but definitely a dynamic visually well written poem.