Baizhu being annoyed when returning home late isn't something new at all. There's often cases where people blame him for not being there earlier. Changsheng isn't around his shoulder, so she's assumingly playing with Qiqi somewhere.

As you waited for him on his bed, You didn't notice him coming in due to your sleepy state, only noticing him when he nuzzled himself next to you in bed, hugging you around your waist.

"Just one small bite, please darling.." he whispers quietly..