[Mash definitely doesn't know Kyo's circumstances, but her heart goes out to him in this moment regardless. He sounds so ...resigned?]

I didn't think I was going to be able to be with Senpai either. [She had been acutely aware of her limited lifespan back then, though she never told Ritsuka about it.] It was a miracle that allowed me to still be here today.

Why won't you be able to be together after school? ... I-if you don't mind my asking, that is.