Basicly, (I my opinon).
It's about a man that's in love with a married woman and then one day when he's attempting to sleep but prevented by his Insomnia (Can anyone say Pete?) he relizes that is wrong and yada-yada-yada.
When he try's to explain that to her, she turns on him. Accuses him for her un-happiness, and want's nothing to do with him unless he stay's in the same 'relasionship' with him (*cough*'peroxide Princess'*cough*).