Hi Geordie Girl
we returned to the uk after 6 years in Oz. we have been back since June and my 15 year old hated it, he stopped talking stopped eating never came out if his room and just wanted to return. We struggled finding a place to rent with no credit history, struggled finding a school and college for my 16 year old as he didn't have any gcse results. All a nightmare really. We gave in and sent the younger son back to school in oz and stayed with a friend. He returned to his old self within a couple of weeks. I return next week to look after him. Fortunately we kept our house so we can go and live there. My husband and older son will rerun also in a few months.
The summer is so lovely here in the uk but the winter is long and miserable.
We did feel homesick for the Uk and for family and friends but this expensive experience has made us realise where we want to be. We will return here for holidays as much as possible.
I feel for you. It's a hard decision and all those goodbye again is a killer.
Good luck with whatever you decide.