I did the exact same thing. I ended up accidentally clicking on her instead of the door. At least I think we're talking about the same thing.
She is in the field. Look for her during the day in the field. If she's not there, then you haven't talked to the nuns about her.
It was when she was crying. Her head is in shadow, and the door she's sitting in front of is dark colored, so she kind of blended in.
