this is all just my take but in case anon is still here as someone who has long had a soft spot for jaemsung i think the thing with jaemsung is that before jaemin used to be very loud crazy about jisung openly to the point it was obvious he favored jisung over basically everyone who wasn’t jeno and even then he babied jisung in a way he never did anyone else or that no one else babied or loved jisung. but once they and really jisung grew up they had a bit of an adjustment period and i think it was obvious jisung wanted jaemin to see him more on the same level/same age friend way and jaemin being quieter about him for a period sort of helped with that. like i remember jisung saying how nice it was to see jaemin loving the other members last year especially and mentioning how he’s always wanted to repay jaemin or love jaemin back as much as jaemin has loved and done for him since they were trainees. i think jaemin does still baby him but jaemin babies everyone even mark now so i think jaemin being “louder” about other members has actually helped his dynamic with jisung mature and feel more even in comparison to when they were younger. and i think saying this jaemin himself is also different from when they were younger and that adds to it too. also in general jisung doesn’t have a lot of shippy skinship moments with members, i think jihyuck has ended up being an anamoly about this and when it comes to rensung it’s always rj initiating, so i think the shift noticeably is from jaemin’s side. but i do think that’s just jaemin adjusting to how jisung wants to be loved and receive affection. we’ll never know how close they are or aren’t compared to whenever obviously but i genuinely think that while yes jaemin is more reserved about jisung in comparison to before and other members it is in response to jisung and i do think their bond is just as strong but more mature and on the same level now.

anyway again this is just my take but wanted to add it if you want since i do see where anon is coming from as a newer fan and i have seen newer dreamzens more contused about their dynamic but i don’t think that takes away from jaemsung’s dynamic. it is different but in some other ways the same and you can see the throughline in how they’ve always acted about each other.