A easy as breathing
Then my lungs filed with water.
You watched me struggled as I coughed
I fought to cough us up to get it all out

Then I stopped coughing, I got up and moved away.
You walked the other way, I did not follow.

Then you wondered why I didn't give chase.  
You should be chasing me dear and if you're not too bad...
I'm running far far away!