Video Vault: Katy Perry -- Hot N Cold

If there was ever a song I could point to -- the chorus in particular -- that just screams to how I relate what I go through, it's this one.
The video link is for the clean version of the song.  You're on your own for lyrics this time because Google Chrome doesn't seem to want to co-operate with me on copying and pasting with regards to that, but Katy has a good voice.  You should be able to make her out.
http://www.youtube.com/watch?v=ms9IxBXuJbs