NC for this
My 11 year old (yr 6) DS is having problems with his friends - only friends. He's had the same group since pre school. They've always had their issues on and off, like a lot of children, but usually it's sorted quickly. Generally they're a lovely bunch of boys.
He's been having these problems for the last month or so, most obviously marked by all of his friends being back at school together - DS isn't.
It's all silly stuff, but when it's constant and "them against him" it's becoming pretty distressing to DS.
Examples include them ignoring him, arranging to meet up and he gets there and they've gone somewhere else, running away from him then hiding, muting him on the Xbox so he can see they're all talking yet he can't hear them etc. As I say, silly stuff.
Friday, they arranged to meet up and again another upset resulting in another fall out. DS came home upset but wanted to bury the hatchet so sent out a message saying that if anyone fancied going out over the weekend then he'd be up for it. Roll on yesterday, no messages so DS headed out on his own but first messaged to say where he was going if anyone fancied meeting him there - he was happy going alone though.
He got there and his phone rings. It's one of the boys, they're all out together. I don't know what was said but they told DS where they were and encouraged him to find them, they then moved from location to location so DS spent ages looking. I walked down to where he was to see what was going on, and heard the phone calls from the boys. Eventually they were found.
I decided enough was enough. They should have just left him alone yesterday. They don't have to invite DS out, but don't rub his face in it then humiliate him by making him find them. So I messaged the mums to let them know what was going on, I'm very much of the opinion that I will always stick up for my children but I don't always believe what they say is true, so I wanted the whole picture.
One mum was mortified and very embarrassed. She wished I'd said something earlier. I hadn't as I would have rather DS dealt with it but he wasn't and was getting more and more upset.
The other mum spoke to her child who told her a very elaborate story basically justifying everything they've done. The story sounds odd, incredibly unlike DS, but I'm not there so I can't really be certain. However what she said doesn't really stack up and something sounds odd.
DS is now devastated, he just doesn't see a way out of all this. He's already struggling with the isolation of being off school and the stress of moving up to secondary school. We're trying to reassure him that he'll find more new friends next term, but he wants these ones 
I just feel gutted for him. He has mild SEN, which doesn't cause huge social skill issues but he isn't great at dealing with things if he isn't face to face with someone ( so over text message). This has been really knocking his confidence over the last few weeks, I don't see how it's going to change.