No one really knows what really happened away from here. Sid is not a bad guy but Sid is Sid. He takes electronics into the bath with his sexy GF.. Bails on her advances, goes right back to his screen. She has been home for at least 24 hours and he basically ignores her. No attraction is evident. No wonder she goes into a shell. Weather you like Bob or not, her activeness when Bob was there was because someone paid attention to her and wanted to jump her bones whenever she is in the room. Sid could be that guy but Sid for whatever reason, is Sid.