I don't think the other sacrifices were fucked. Mugo is eating the sacrifices as revenge on the family because they caused the death of his beloved. He's being a jerk because he's still grieving to this day.
There's obviously some deal with the devil shit going on. My guess is the seme signed made some typa agreement with a demon that involves the uke. They barely got together and the seme is already tryna control and smother him.
These titles are getting out of hand.