Jace would rather be anywhere else than here - stuck in some alternate dimension with Clary and Simon frigging Lewis. But, unfortunately, he doesn't have a choice. Also, Jace is not okay.

Sanji describes his time on Momorio Island as "hell". Despite what he lets his crewmates believe it has nothing to do with the lack of ladies. He spent two years either fleeing or fighting. He did not come away unscarred and did not have a fun adventure. An attempt at a canon compliant explanation for Sanji's reactions without just being a prejudiced jerk. Lots of trauma and internal narrative.