Belly being okay with Taylor and steven dating

In Season 1 episode 3, she gets upset when she sees taylor and steven hooking up, we obviously know steven was with shayla at the time but in season 2 episode 1 or 4, Steven and shayla have already broken up, when belly sees taylor and steven arguing as a married couple, she seems like she’s okay with it and she kinda ships it (based on her face), was it bc she was worried that Steven cheating on shayla would affect her friendship with the debs? (Bc it’s her brother)