Lorraine

There was this guy and he had a girlfriend called Lorraine who was very pretty and he liked her a lot.
One day he went to work to find that a new girl had started. Her name was Clearly and she was absolutely gorgeous. He became quite besotted with her and after a while it became obvious that she was interested in him too.
But this guy was a loyal man and he wouldn't get involved with Clearly while he was still going out with Lorraine. He decided that there was nothing for it but to break up with her and get it on with the new girl. He planned several times to tell Lorraine but he couldn't bring himself to do it.
One day they went for a walk along the river bank when Lorraine slipped and fell in to the river. The current carried her off and she drowned. The guy stopped for a moment by the river and then ran off singing -
"I can see Clearly now Lorraine has gone"