Mrs. Flynn owns the apartment Charlie rented. She reacts with sadness about what is happening to Charlie.
Through questions similar to yours, we can see that this question refers to the book "Flowers to Algernon." By reading this book, we can see that:
Everyone who knows Charlie's condition is very sad, guilt-ridden, and melancholy at the state he is in. Among these people is Mrs. Flynn, who owns the apartment where he lives.
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