That was terrific!
(If I put too many spoilers here, I hope someone can black-out them for me)
The ending: Monica stayed back but wasn't making her wreath any more, just a long chain. She could wait there endlessly because time really didn't exist there. It was many years later that Fine comes back, and she was able to do so because she never forgot her friend :-) And off they go to the afterlife together!
Nice! Needs more tags though, like Aaaangst and Supernatural?
One point though: Monica says her wreath withers all the time... that's a frightening concept given their situation, eh?