These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The History of Middle-earth
Tear Jerker: Aegnor/Andreth. Aegnor the elf loved Andreth the mortal woman, but they didn't marry, since Aegnor didn't want to live forever as Andreth faded away. In a burst of tragic irony, Aegnor was killed in the Nírnaeth Arnoediad, long before Andreth's own end.) Aegnor's brother Finrod believed (possibly because Aegnor told him) that Aegnor would refuse reincarnation, preferring to remain dead in the hope that he could be reunited with Andreth at the end of time.