Now it's been a while since I read it, but I didn't find the ending disappointing at all. It was sort of a tragic lesson that it doesn't always matter what we want or don't, fate will always make the final descision. They wasted so much time ( like many of us do) argueing and being right and being heard that in the end that doesn't really matter anyway.

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"A true friend is someone who thinks that you are a good egg even though he knows that you are slightly cracked." ~ Bernard Meltzer