Blame it on Y2K. After the new year, we started seeing the surprising breakups of some of Hollywood's most adored -- and enduring -- romances. Some ended badly, some are mysteries, and some may have re-ignited -- and the year's not even over.
We admit we are fascinated; we even offer our own explanations and theorize who cheated first. So Hollywood.com has put together its own rundown, gathering all the pieces and trying to put together the story behind Tinseltown's big romances -- and why they soured.