I like the overall feel of the poem; melancholy but descriptive. My kind of poem. Just a few notes though, if you don't mind:
It paved our way through syntax error
As white picket fences looked to the west
This line was jarring for me, when compared with the previous and following lines. I notice that other lines, save for the first and last two (which are okay when put into context) begin with words like "Reminding" / "Existing" / "Settling" / .... / "Exhaled" / "Covered" / "Strummed" etc. All opening words which serve to remind the reader that the speaker, and the "You" (the person for whom the poem is intended) did something together, or relate to each other in some way. As a result, I think the abovesaid line is discordant -
Unless, which I just realized, you're referring to the "sidewalk cracks" in the line before, and the use of the word "It" denotes continuity. In which case, I think that (and this is purely personal opinion), it could be rewritten like this:
Settling for a vicarious existance
Loving each other on a sidewalk cracks -
Which paved our way through syntax error
As white picket fences looked to the west -
Exhaled together but no relief
A hint of suspense in southern breath
which would denote a slight break in the train of thought, but less jarring IMHO. The dashes are there to separate that line from the others, and gently set the rest of the poem back to its original course.
These are all just suggestions. If I'm nitpicking or have missed the point, I apologize. Do let me know.
