Thanks for the comments, and brainfreeze, sorry, yes I did soudn a bit touchy didn't I?
There is lots more behind this from 18 months ago which I haven't explained. I'm not normally very confrontational, and I do believe my kids should learn to stand up for themselves to some extent.
However we tried a lot of the things suggested at the time without success.
At the risk of sounding like a judgemental witch, it's not really the boy's fault, it's the mother's I think. He clearly needs some help and support with building and maintaining social relationships, and she is not providing that.
He does not have any special needs (in the diagnosed sense) as far as I am aware.
We tried the playdates, and lift-sharing, and getting my son to play with him but to say no about things he didn't like etc. The problem is, at the first hint of friendship, this child, and his mother, are like limpets. My son has a wide variety of friends and gets on with most people, but his boy was spoiing that by his silly behaviour, and by ruining the games they played, silly name calling etc.
He was always 'hanging off' (literally!) DS and tried to stop anyone else partnering with him/ being friends with him etc.
To be honest, the teacher at the time wasn't great, and it all came to a head when I found out that DS was paired with this boy in class to 'help him' with his work (DS is very strong academically, and early reader etc).
In non-classroom lessons such as drama/ games/ music etc this boy was getting DS into trouble, and although DS wasn't showing it at school he was very upset and agitated about it at home (which is very unlike him). It was like he had an emotional bully and a stalker. He stopped wanted to go to after school clubs ("what's the point? He'll be there...")
I went for coffee with the Mum and tried to gently explain that the 'friendship' wasn't working, and that my son wanted a broad base of friends. She simply would not hear/ listen or accept it, just kept saying "but they're SUCH good friends, they are soooo good together"
She really is a nutcase I'm afraid.
e.g.
- she once picked up my son from an after-school drama club without telling me - we were a few minutes late, and she persuaded the duty teacher that it was OK . When I got to the school, found out and phoned her she was trying to stop me from collecting him until 6 pm as they 'were having such fun together' (they weren't...)
- she has phoned various teachers to ask that they be paired off for school teams/ a drama competition, and on each occasion she has siad that she is phoning on behalf of me as well!
I know I sound hard and unfeeling, but this caused us so much grief at the time, I simply don't want to go back there