This is when it hurts

[dukealien]

OK, the first poem I've ever written. Some lines taken from a song lyric I wrote but restructured to a poetic form - I hope.
I think it needs an ending, and probably many other things too!
Have at it!

This is when it hurts.


Her coffee cup sits lonely on the counter
It’s lipstick kiss still smiles at me  technically, should be "Its" (no apostrophe) because English spelling is arbitrary
The kitchen clock ticks round and round without her good image/sound fusion
This is when it hurts


Not in the knock down drag out fight  a cliche there - can often be solved by rearranging or substituting a word or two
Not in the angry scream and shout  same here
But on a quiet Sunday morning
As the bright new day is dawning  nice near-rhyme
This is when it hurts


Her laughter used to fill this room
Now silence fills that place  this would be a good line to work on
I turn around to talk to her
And find an empty space  
This is when it hurts

First off, in basic critique, it's quite a fine ending.  It closes in such a way that there's really nothing more to say.  You could eliminate that first lonely line with its period, and give the poem a title (not that phrase).

Capitalizing the first word of each line has fallen out of favor.  Nothing wrong with it here, and it doesn't hinder the reading... but you might try using only ordinary sentence capitalization (if you also use punctuation marks - comma, period, and the like).  As presently written, each line  a separate entity, there's no particular reason to change, though.

This is a good concept to which a reader can relate.  My impression is that the rhymes came naturally, which bodes well for future efforts.