I think that one of the reasons I love it is that the words remind me of the worse break-up I ever had. That may seem strange, why would I like such a thing? This particular break-up was the only one I ever experienced where the person (who I was living with at the time) decided to just completely stop talking to me, and actually treated me like a complete stranger.
It took months for me to figure out what the heck had just happened. I was the one who broke up, but it was a completely calm and agreeable break up. One that by no means should have made us strangers, one that of all the other break-ups I've experienced would have seemed most likely to leave a friendship intact.
In a way this song gives me comfort. Knowing that I am not the only one this has happened to. A little piece of my dignity comes back every time I hear it, and I realize how screwed up it was. Let's just say I've listened to it like 1,537,239,203,234 times. (Just today).