Respuesta :
remorseful is your best answer
"remorseful" means "filled with remorse, sorry". Even though it is not said, it is implied that he is sorry, because he thinks back to the history of how his mom ended up like that.
hope this helps
Answer: remorseful
We can see that the story is speaking about him being sorry, which it's obvious that it's not being said within the story it's self, but, for sure that's what it's trying to bring out.