Here is what she says about this scence in the video in a MTV article.
Quote:
Clarkson is shooting a video for the track this week with director Joseph Kahn in Los Angeles. In the clip, she gets to haunt her ex. "It's kind of like 'What Lies Beneath,' " she said, referencing the Harrison Ford and Michelle Pfeiffer thriller. "You don't know if he killed me or if he's just being haunted by his conscience. Not to get all artsy-fartsy, but I'm all in white, everything is in white, because it's been ripped of innocence. Anyone who's ever been in love, when it goes bad — and sadly, everyone can relate in some manner — it just gets cold and it's hard to get past that."