>>3946When it comes to Felix, people always pair him with Subaru in a really shallow sort of way and treat him as a generic shallow trap (no offense), but I wish there was more discussion of him in a more serious light.
Canonically, his main love interest is definitely Crusch, but there is something there about his feeling with Fourier, (crown prince that died before the story from a mysterious disease that wiped out the entire royal family despite Felix doing everything he could to save him) and I think you can do something a bit more in character with his passive aggressive relationship with Subaru, he doesn't like him because Subaru is so weak and reckless, but still mans up and becomes a knight, something Felix completely gave up on for himself because his puberty was stunted from neglect and abuse. It's also mentioned by Crusch that Subaru is similar to Fourier in attitude and that maybe that's one way why Felix doesn't like him.
It feels like such a waste, especially with the IF Pride route where he
gets mindbroken after the erasure of Crusch and (evil) Subaru ends up convincing him that the hole where the person he loved and worshipped was him all along. Nobody does anything with that, I don't know why.