Apologies for sounding like obsessed neurotic parent, although probably am.
My ds is 3 and to me is the most gregarious child I have ever met. He will talk to adults all day and initiates conversations with complete strangers on a regular basis. However, I have recently observed him in situations with other children (he knows well) and they do not appear to want to play with him - if he wanders up to them, they wander away and he quickly gives up trying to play with them. He does tend to be quite aggressive with other children.
He looks so lonely, I feel terrible for him, but not sure how he feels. Am I worrying about nothing?