The nurse said that she'd seen many people coming and going in the hospital, so she knew how to read people.
She could tell that every time the man visited, he was in a bad mood, as he often watched her with infinitely sad eyes.
When he stood in the corridor without coming in, his hands always balled up tightly into fists which were so tight that the backs of his hands had veins protruding on them. There were even times when she saw him raise his foot towards the door but pulled it back in fear of coming close like he was afraid it would be unbearable for her.
The nurse also said that the man must really care about her because one time, she even secretly saw the man reach his hand through the window to touch her face. He was very gentle and infinitely caring; just before he left, he gently pecked her on the cheek.