A Pattern of Endings

[Joyful Noise]

I would suggest steering away from using a simile in the first line--perhaps replace with
I look through you, my glass

Or spend all my time

Replace "imagining" with "conjuring up" or some other more descriptive term/phrase
Imagining pictures in all of your smudges.

Reword:
And yet
(The buildings or whatever you choose to describe) steal my gaze from you

Reword or delete this portion
And know there are windows and building out there
Much more beautiful than you.

I like this line
I'm no good with anything fragile;

What is bound to break? Maybe choose something specific
It's bound to break beneath my feet.
Does this make me heartless?
I really don't know.