Family History

Two and a half years ago, the hubby and I moved abroad with our three kids to make a new life for ourselves, although as we are still in Europe and the hubby is back to the UK 2 or 3 times a month to supervise his work and I am back monthly for differing reasons, sometimes it feels like we are still tied to the UK.
Eldest son was the one I thought we would have the problems with, but he has settled in and loves the sun and beach life that he has, a bit too much...me thinks!!! He has become even lazier and his exam results prove that. Am waiting for his AS's in August and am hoping to be pleasantly surprised!!!
Youngest daughter, has settled in as well as I thought, only she has not picked up the lingo as quickly as I thought she would, but to be fair, all her friends are English and the foreign kids all speak English as well, but hopefully over the years she will pick it up. She got her pony and rides everyday and loves school.
Next up is Middle son, who has always hated school since he started and I put it down to the fact that he is ultra sensitive, misses time off due to illness (he suffers from asthma, ezcema and allergies) and the fact that he just loved being at home, he was looking forward to the move as he was fed up in his school, hated his teachers, hated the protocol etc... Anyway to cut a very very long story short, he has been picked on by this kid since he started, but this kid has picked on all the kids and the school were very reluctant to do anything eventually 2 and half years later the kid is gone!!! But I now have a child who has convinced himself that he would be better off living back in England!!
I think he is geniunely confused and if he thought about things logically he would see that he is better off living here but he has told everybody for the last 18 months that he is leaving and has now got himself so worked up that he is insisting to go back and will even go to boarding school as I will not let him stay with his nan or auntie. But he is getting so upset and I know he internalises everything even more and is starting to lash out at his younger sister when she is being annoying even more now.
Anyway I told a friend today about this as her hubby works as a sports master at this boarding school in Surrey and she happened to mention it to my hubby who is over in the UK playing cricket and he has got really upset with me tonight over this, as he is focusing it all on him again.
Not sure if this is a cry for help from a pre-teen whose hormones are going in overdrive or if it is the fact that he is super stubborn and wants his own way. If it was the other two I would stand my ground and tell them they were not going anywhere but back to school here in September, but because we have always made allowances for middle son as he has always had the nicest nature and way about him, I am really dithering what to do, hubby is in denial and insists he stays here as he is very anti boarding school and does not want to pay up for it either. My local options are to stick him in the local comprehensive, which I know has a major bullying problem, homeschool him (paying somebody else to do it, not myself) or forcing him back to the international school he was at.
All I know is hubby is back tomorrow and we are in for fun and games, have to go do a big supermarket shop tomorrow, as the cupboards are bare and also have a dinner party for 9 tomorrow as the hubby has invited people over, really what I do not need when we have these bigger issues hanging over us!!