Emily grieves for the letters and cards she's not allowed to keep at the convalescent home, she doesn't accept much affection or food upon her return to home. What is the best inference we can make from this information

Her months in the convalescent home were traumatic.

Explanation:

Emily suffers because she is not allowed to keep letters and cards in the convalescent home. This shows that she is having a bad time and suffering while in the home. However, once she is back home, she cannot accept affection or food. It appears that her months in the convalescent home have changed her in a profound way. The most likely answer is that her months in the convalescent home were traumatic.

I think that by the looks of it, she doesn't want to go back home, maybe the family are druggies ...