What causes marian to abruptly leave the women's room in "a visit of charity"

in "a visit of charity" marian abruptly leave the women's room because she can't stand the feeling of alienation between the two old woman.

Marian is just a young girl that visited a nursery house for the first time. When she entered the room, it is the first for her to be exposed to a sad condition of old people that are left and abandoned by their family.

she can't stand the feeling of alienation between the two old woman.