DS is a nice & friendly boy (though an only child). He had lots of good friends at nursery, and always had a best friend too. When one left (as happened a couple of times), he would be glum for a while but soon find another. However, it has been very different at primary school, which takes a broader social range. He made a close friend in the first few weeks, but this ran into difficulties early on with various minor disputes, and now he has not even been invited to the boy's birthday party - or, for that matter to his favourite girl's party, which is happening at about the same time. There was also some physical bullying from other boys at the start. We spoke to the teachers and it has stopped, but he still doesn't have any real friends and is definitely feeling lonely and excluded. I tried to get him involved in football classes, but it didn't really pan out (he wasn't very good, and eventually decided to stop). We have lost touch with most of his old friends, who all went to different schools. I put out a couple of invites for playdates to hopeful prospects, but they have fizzled into the ground, one way or another. Today he told me (before running off fairly happily to play) that he wanted to kill himself - which I relate to the party thing (though it might not be. I will try to explore this further). Any advice on how to help him make new friends?