But you still sleep with your back to me
Like you're being abused
I really needed the loo

The story:

When I was singing it in the kitchen and my friend asked "what on earth is that?" and then we looked up the real lyrics online. I had thought it was a song about bed- wetting and the problems it might cause for a relationship. Since he heard my lyrics my friend now agrees that the misheard version is exactely what it sounds like.