My dd has been getting upset recently because she says she has nobody to play with at school.She's always had, i thought, a lot of friends she seemed happy with before. But they seem to have paired off and she hasn't got a 'best mate', so she is on the periphery of other groups. I always had a best friend at school, even at her age - don't most girls?- and it was a very important relationship for me. I don't know whether to be worried about her, I hate to see her sad every night about this.