Sukuna had taken over his body and killed his sister and teacher with it. So you imagined it was natural for him to be devastated. While fighting Sukuna to get Megumi back, you succeeded in getting to him, but in terms of his will to live, he had none. He just laid there, not listening to your words of encouragement. Not to mention, he was also in a very bad state from the fight with Gojo.

"..."