[Calliope is definitely unfamiliar with and unused to hugs. But it brings her a strange measure of comfort that she didn't know was entirely possible with such a small gesture. Maybe not something she'd want all the time. But for now, when she's feeling so sad, it's great.]
[Not only that, but Roxy's body heat is pleasant, in and of itself. Calliope doesn't draw away yet.]
He would be a bother to you all, anyway--he's a terrible roommate. He throws tantrums and breaks things when he's upset. Or excited.