I’m not sure Belle will care either. Rumpel’s the only person she knows (well besides Regina who she obviously won’t trust), so I wouldn’t be surprised if she trusts him over a bunch of strangers. I also think after 28 years alone large groups (or maybe just groups period) would be a bit nerve wracking.
I never thought about it that way but you’re right, Belle was on her own for 28 years so she’s hardly going to want to be a social butterfly. She’d be happy just being in the company of Rumple annd he’s not going to complain, he gets her all to himself.
Interactions between Rumple and Maurice/Moe French are going to be interesting. Belle’s father is going to despise Rumple especially because Rumple beat him up yet Rumple is going to have to at least act civil towards Maurice because of Belle.