There isn't enough space in this city.

[Wjames]

In a large town I found
a girl who couldn't learn 
the days of the week. She
would not bother to keep I like the half rhyme keep/week.
a journal, or a straight thought.

In the summer her feet
would burn picking up mail,
hopping through steps with 
her back turned to me. Up I like the image.
my shoes she'd climb--into

and up my shoes, I flicked
her lips, folding neatly over 
my inflamed beak, I think.

In a large town I found
a girl whose dance was a 
practiced seizure. Through glass This practiced seizure dance makes me circle back to the woman hopping to get her mail. Are they the same woman?
I saw her jerk, and through 
wall I wanted to lurk

into her skin. Up her
smile. Alone in her thoughts. I really like the ending... makes you think, forces you to go back and read it again (in a good way).

The title makes me think, "This town 'aint big enough for the two of us!".

It, combined with the ending makes me think the narrator is epilepsy itself, watching it's victim's. Of course, that could be completely off from what you were intending, but I think the ambiguity of this one, combined with the specificity of certain scenes really works to let the reader fill in some of the blanks with their own idea.