I must admit that the post from Matt has left me a bit speechless...
My own experience of having that 'eternal unfinished business' with my mum isn't a big deal compared to that (and from what I think I remember from reading in one of your posts a long time ago) and I was convinced I had come to terms with it, but now it seems that's not completely true. Just like you, it got me thinking... and I need to stay away from that.

I can totally relate to having the need for being around people that 'get you'... In your case, I assume it means returning to the UK?
Don't overthink it too much - if it is something that would make you feel good, just go for it. Because doing what you think would be good for you is in fact the only thing that is really important...