Why does xterm/bash word-wrap even tho window is large to fit command

So this happens some times, not always. I'll write a really long command and I'll be satisfied with it wrapping around at the edge like so:

What I don't like to happen however is, after increasing the size of the window, if i write a new long command or go back in my command-history to my previously long command it will word-wrap in a way that destroys readablity, like so:

http://ift.tt/1tY5Cgt

ArchLinux Linux kernel: 3.17.6-1 xterm version: 314-1 bash version: 4.3.030-1