He is extremely needy.

He has made it pretty clear his expectations in the relationship, but have you done the same?

I wish to draw attention to the lack of socializing when you go out. I think you should continue to do so. I am not suggesting you babysit him but I would ensure that he is introduced to every single person present before going on to do your own socializing. My boyfriend and I had a prearranged 'signal' where I could indicate it was all getting a bit much.

Do you two socialize with any aquaintances of his? What if you were to invite people over on ocassion so that he might feel the safety of being in his own place?

I don't think there is anything else you can do. Youve pretty well exhauseted it all - and yourself. Go ahead and maybe try the above - you may already have. It may very well be that this relationship needs to come to an end.

When it comes down to it, you must look after yourself.