Hi not really sure what I aim to gain from this but feel I need to get everything off my chest, completely understand if I get no replies!
DH and I have been together nearly 9 years and married for nearly 4, we have 3 children under 7 including twins.
We have been through lots together and always come through the other end but Im not sure if we can carry on anymore 
DH has always been painfully shy to the point that he physically cant bring himself to join in and speak in large groups and often comes across as rude and stand offish he even finds it difficult to speak with me in these situations. I have never been keen on being centre of attention either so to start with it didnt really bother me too much but after 9 years and now the kids are all at school Im starting to resent the fact that we have no friends and no social life.
We both had difficult childhoods and I am only just getting to know my Birth family, they are very outgoing and welcoming and I am starting to overcome my shyness and am getting to know them, unfortunately DH just wont try with them and it causes rows everytime we meet with them 
He admits that he finds life lonely and would love to have friends but he wont actually do anything about it!
I am at the end of my tether with it and am ready to walk away 
I have tried being sympathetic and encouraging I have tried pushing him, not pushing him and nothing helps!
It might not sound like a lot to some of you on here but I am so worn down by it now
I end up not making friends myself as I am ashamed of his behaviour so its easier to be like him, if he had his way we would never speak to anyone outside our family of 5 (except for work) and its hit me that once the kids leave home we will be that sad couple who have no one and do nothing and I dont want that life!
I have told him I want a divorce and he is begging me not to go that far, he is promising to get help but we have been here before and he doesnt bother and things are ok for a while but then something happens and I realise he will never change 
How do I know whether to give him one last chance or to walk away for good?