Has anyone in the Strawhats other than Luffy hugged Zoro?
Post timeskip, Zoro seems to only have notable interactions with a few Strawhats:
Preskip he also had interactions with some of the others:
- Nami
- This was mostly in East Blue though
- Robin
- IIRC these were mostly before Franky joined
As for Zoro and Robin, they had some nice moments together preskip. I wouldn't necessarily say that their interactions have particularly suffered postskip — Robin was the one to pull Zoro back when he wanted to leave the bubble in Fishman Island — Strawhat Family moments are just much rarer now.
It's much harder to ship Zoro and Robin now, but that's a consequence of less Strawhat family time, Oda pairing Robin with Franky (most ZoRo moments were before Franky joined) and Jimbe (he wasn't a Strawhat preskip) more. Oda also seems to devote more attention to Zoro's interactions with Tashigi in Punk Hazard or Hiyori in Wanokuni. It's just an unfated pairing.
I don't recall Zoro having particular notable interactions with:
Outside his role as the Vice Captain (e.g. protecting weaker Strawhats, his criticism of Usopp after he raised his hands against Luffy, helping Brook get back his shadow).
Outside of us been giving fewer Strawhat moments postskip, Zoro's interactions with the other Strawhats haven't suffered in particular. The majority of the Nami moments were in East Blue for example. As the cast became bigger, Zoro and Nami simply interacted less.
Zoro and Robin's interactions were heavily toned down after Franky and then Jimbe joined the crew. It's not so much a regression of Zoro's character after the timeskip, but more Franky/Jimbe being the male relationships Oda wants to flesh out for Robin.