Taph sees Builderman trying to get Jane’s forgiveness and wonders if he would give them that much attention if they made him feel bad about something too
Because they see the best in him—he’s so sweet sometimes, and he listens, and he’s shy about his feelings, and no matter how harsh he can be, he has always protected them. They want to see a good person in him, someone who would choose to love them over his ambitions.