im sorry little one
I'm regretful about the little one.
I'm apologetic for the little one. I understand what difficult such a situation can feel. I kindly request, receive my genuine apologies.
I feel apologetic for you. I understand how tough the situation can feel. I kindly request, take my heartfelt condolences. I deeply feel remorseful the trouble inflicted. I feel hoping that the little one will forgive me.