"What are you my dad, you affect me like you are my dad."
I think she is saying "dead" instead of "dad." Her dead, deeply mourning as if this were the loss/death of her "own blood," her kin. This seems to be reinforced by the verse just before that, "what are you my blood, you affect me like you are my blood." She loves him like her own family, and so loosing him is something she will never get over. Still, she feels childish for feeling that way even after all this time.
"What are you my dad, you affect me like you are my dad."
I think she is saying "dead" instead of "dad." Her dead, deeply mourning as if this were the loss/death of her "own blood," her kin. This seems to be reinforced by the verse just before that, "what are you my blood, you affect me like you are my blood." She loves him like her own family, and so loosing him is something she will never get over. Still, she feels childish for feeling that way even after all this time.