In freak the mighty why does Kevin's mom apologize to max in chapter 5?

In Chapter 5 of "Freak the Mighty," Kevin's mom apologizes to Max because she feels guilty for what happened during their encounter at school. She recognizes that Max has been through a lot and acknowledges that his past trauma should not have been brought up in front of Kevin. Her apology reflects her concern for both boys and her desire to ensure they have a supportive friendship. This moment emphasizes the themes of understanding and compassion that run throughout the novel.