Concerned

I’m really worried about one of the girls in my tutor group. Alice has always been so good, really focused, always handing work in on time, but just recently things have changed. Not only is she off sick more than she is at school but when she is here she is distant.
 
Alice doesn’t seem to be with her group of friends very much and often alone. I’ve tried to meet with her but she’s avoiding me – not turning up when I’ve asked to see her after school.
 
I want to help but how do I make her understand? I know her parents are worried too as they have been in touch with school. We have a meeting booked next week but I’m just really concerned about how to approach this and find out what is going on.