Why is it that the person who once hurt me is now rewarded and paralyzed, but my heart is not happy? I feel a little sorry for him, but I think he deserves it.

Your heart is kind and hateful. Why do you say that? The person who hurt you is paralyzed. You should be happy, but you can't Instead, you feel sorry for him, which shows your kindness. If he doesn't hurt you, you will only have the first feeling: pity him; But because he hurt you, he was paralyzed, what goes around comes around, and he deserved it. You think he deserves it, so your hatred is obvious.

Just like the characters depicted in some novels, this is your character, so it is normal for you to pity him and feel that he deserves it. You don't have to care too much.