Just wondering Temashow your GS manages in other social situations? Is he in scouts or some other youth organisation? If not you might consider looking for something that would suit him. He may find a smaller group easier to cope with and will build social skills. Even when my DS was out of school he attended a local Woodcraft group which really suited him and gave him a lot of coping skills.
Nearly a year on and not being able to speak to sister about our brothers passing


She's had a long road but is now trying to get into college she's been very brave.
but you have to remember they are teachers not mental health professionals so I'd always take their advice with a pinch of salt.