LogFAQs > #969519695

I think the anime ended before the manga did - but either way, the end result was all for the best.

That seriously was one of the worst twists in anime/manga history. I never finished the manga once it was clear what direction it was heading.

But as for adaptations in general, it's to be expected that people are left unsatisfied when the developers cut out so much of a series; turning a long running series into one season, or a several-volume manga into a single movie. Even if they don't decide to change the ending, you wind up losing half of the development that brought you there. But there have been adaptations that expand or improve on the source, sorta like Usagi Drop.