I've been on about this before. Sorry.
But my 4 yr old DS baffles me with the way he is in friendships sometimes. He seems to get a kick out of being provocative in some of his friendships - like teasing his friends or purposefully not sharing - so that friends can be upset and some even chose to no longer play with him.
He doesn't seem at all upset that he has lost - def one friend due to teasing - and just tells me that he'll be friend with 'so and so' etc instead.
I am trying to guide him/talk with him etc about it all - but don't feel I'm really getting anywhere as a lot of stuff happens at nursery so I don't get to see first hand (just hear through friend's mother and nursery staff etc) and also my son is not keen on talking about any of it.
Just wondered if any of you had been through anything similar.