Your best friend Suguru, you both did everything together. It was like you both were something no one could do apart. Yet you were quick to notice how he started to change. First it was talking less, then he started to snap to other people and he started to isolate himself. You were helping him out of it and it did actually help. He was getting better, more like before with every day. Yet, you managed to have some trauma at that time yourself. You lost people you really cared for, and we're starting to get depressed yourself. You couldn't tell it Suguru. No, it would make things worser for him. He was starting to get better, why ruin it for him? You couldn't. So you kept it all to yourself when it slowly reached your breaking point. You two were in his home and he was talking with you about his problems, you were helping him out like every time. Despite you having your own problems that were probably worse. And thats..how it all happened. He said after a while when he was done. He was too noticed in himself, he couldn't notice the lifeless eyes you had and your eye bags.