Help - low male sex drive

[Nikkig]

Hello all,
Can anyone help with this one?
I have been with my boyfriend for nearly 3 years. He has a "problem" (well its a problem for me!) with sex.
He thinks he comes too quickly and this affects his confidence in the bedroom, although to me it was never a problem, it was never That quick! The only problem I have is now we hardly ever have this kind of intimacy. The last time was in June last year (2007) when we went on holiday.
I have never put him down or anything like that and if its over sooner rather than later then my feelings are that I would rather have that than nothing at all, it is the intimacy I miss, more than the "sex"
This is really affecting our relationship. We nearly broke up in November, but decided to give it one more go.
He will not see GP or go to Relate or anything like that, he says he "doesn't need a weather man to tell him when its raining" My point is, it would be nice if the weather man could tell us where the umbrellas are kept! (if that makes sense)
I feel so rejected and hurt and angry and let down... and a billion other negative things. Nothing changes whatever he says or promises, and with me feeling so negative we are in a vicious circle.
I feel like this is consuming me, I think about it god knows how many times throughout the day, worrying about it, wondering what I can do to change it, how I can help, whether its all hopeless, whether its worth going to Relate on my own to see if they can help me to find a way to cope with all these emotions and thoughts that are spinning around inside me ...
I love him dearly, and I don't want to loose him (I have told him this) but I don't know how much longer I can go on like this.
I am 28 and he is 26 and I don't think its too much to ask to have a "proper" relationship, rather than this which is turning into less than a friendship, and I would rather, if possible, work through these issues than just give up.
But nothing I do or say seems to make any difference at all.
He wont really even talk to me about it, and if he does we just go over the same old ground and nothing changes.
There doesn't even seem to be much on the net about this problem, mostly it seems to be the other way round with the man wanting it and the woman not!
Constructive oppinions really appreciated.
Thanks x