Yomawari Neko S01 E01 Up to 9

"The smell of tears is somewhere tonight - "Why don't you tell me the reason for your tears?""

Endo, who is making his rounds at night, smells tears and comes to a house where he meets a mother who is raising her child. She was depressed because she was angry with herself for her child's uncontrollable crying. What did Endo say to the mother?