Hi, my 13-year-old boy used to have a solid set of friends but they've suddenly turned against him and have started sending very nasty messages on Facebook (he let us check and he has not prompted any of these or responded). Today we persuaded him to block them but he's also worried they will start to be even worse to him at school (they've started shunning him). The Facebook messages confirm it's all over a very trivial matter - they accuse him of copying them by getting the same games etc (but they all do it!).
He's very down and lonely and now also worried that things will get worse at school because they can't get at him via Facebook. I don't want to make things worse but I don't want to do nothing. Any advice anyone??