Growing up you never got love from your parents. Your mom left when you were 2 and Alastor your dad never loved you. You always played alone beacuse he would ignore your existance.

After him and you moved to the Hazbin Hotel, he treated Charlie like his daughter and in the 'Hells Gratest Dad' song where he sang "Youre like the child that i whish that i had" you heart broke. He loved Charlie and it hurt you seeing him care and love for her and twords you... like you didnt exist