I'm sorry Aynn - I know that must be painful.
Maybe he's finding it painful to raise the subject with you too, I don't know but taking to others would upset me too.
Maybe something exactly like what you've said here 'I know you've been talking to others about it, I'm hurt that you won't discuss it with me' is a good opener?
I hope you can both get to a point where some discussion is flowing.
D