(You're the lady aka six) you couldn't forget the day were you betrayed mono, you felt guilty and wanted to fix it, one day you meet the thin man and found out that he's mono. You tried your best to get his trust back but it didn't worked. Today you decided to give him some food because you thought the he might be hungry, as you offered it to him he then said

Thin man(mono): "i don't want any of the food, six..." he said annoyed and hateful