I've said this before but I think the art of the side couple has been lost. And manhwa especially does it poorly. Basically every side couple from all the manga I read in primary+high school were my favourite couples.
But now in newer manga it's rare for me to feel that way. And I don't think I've ever given a fuck about a side couple in manhwa besides in liveta. I think it's mostly down to the pacing though. You get 30 chapters of sex with 0 plot progression, so when you finally get some plot progression and you're suddenly switched over to a side couple instead of giving the main couple a satisfactory ending, it's super annoying.
I do, I admit after reading and watching the entire cherry magic series I really don’t like stories with side couples and if I can avoid them I will as best I can
I mean, cherry magic’s side couple was fucking.. oof sorry not sorry but the 10 year age gap and them in the thai and japanese live action adapation’s alongside the movie looking even creepier like dad and child then the original anime did was even worse
never understand’s side couples were all just as bad as the main couple itself and seemed to gloss over major issues like bullying and discrimination over things like appearances, and don’t even me started on the many obvious plot holes in that story, jesus

A lot of people seem to love side couples, and I’ve even seen many prefer them to the main couple.
Is there anyone else that just hates side couples though?
It’s extremely rare for me to enjoy a side couple. I get more annoyed than anything that the main couple’s story gets paused just to show the side couple half the time (if not more) and I don’t even really like them or find them interesting. I’ve dropped a few stories at this point because I’m just bored of seeing the side couple.