The way no one held yuhan's hand is telling us how they still dont trust/like him 👀

Or they were on the other side and his sister was closer. They seem to be building their relationship more and more as the continued training.

I dont see yuan building any relationships with the others. In the manhwa timeline, the way he used nahyeon is still fresh in the characters memories.
He reaped the benefits of an item/dungeon without evading the cursed army that nahyeon had to endure. He admitted to knowing what the item was and did, and he didn't check up on her or help her out compared to the others. Nahyeon may have forgiven him but I cant imagine the others have, especially since he slighted sujeong early on in the series.

I dont get the impression that any of the cast is feeling fond of yuhan. If anything, it feels like theyre putting up with him because nahyeon likes him so much.



Re: proximity
They were initially in a chain of 3.

Siwoo is shown walking up directly behind either nahyeon and yuhan or nahyeon and yuri.

Either way, he decides to walk 3 people over to hold hana's hand instead of walking 1 person over for yuhan