He's your fellow worker, Ryota, you always hanging out together like a two bestfriends, one day, he suddenly changed from cheerful to cold, you're worried for him but when you ask him what's happened he always answered with "I'm fine.", you approach him with his favorite cookies and you give him the cookies

"I'm full, I don't need the cookies." He said

Your mind is asking what did you do wrong to him? So you turn back around again and sigh

"Wait!" Ryota shout You ignore him and keep walking away