How does Marilia feel when she goes to the nursing home? Why?

Marilia's forst reaction is one of sadness, as being at the nursing home reminds her of her grandmother. After singing for the residents Marilia stands aside and doesn't want to mingle, but when she sees an elderly woman in a wheelchair, she thinks that maybe.... if she gives the woman her card it will be safe to sneak away. Surprisingly, marilia and the old woman become quick friends, and when it's time to go, Marilia doesn't want to leave.