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: Yahari Ore no Seishun Love Come wa Machigatteiru
Though the escapism in that is still tampered by the realistic bouts of loneliness he faces due to being something of a social pariah by following his own philosophy (he even lampshades it once or twice). Bouts that come along as often as not. (Though perhaps it's more frequent in the anime.)
Also Hachiman and Hayato, both in-universe(thanks to Hina's wild imagination) and in real life (apparently, Pixiv artists liked the idea a bit too much).
Jerkass Woobie: Both Hachiman and Yukino. Despite their abrasive personalities and cynical outlook on the world, they're both fundamentally lonely people who had to deal with isolation, rejections and bullying.
Sleeper Hit: Overlooked at first due to mediocre animation and labelling as harem romance comedy. Highly appraised later by virtue of great characters and thorough exploration of their psychology and motivations.