I don't think opening up is necessarily a bad thing for you, Puddle. It might open you up to some hurt, but will it hurt less or more if you keep it inside? Showing him the inner you might eventually lead to that damn "connection" he's on about.
Regarding being stubborn about saying the "marriage CAN work", maybe -- You are right, our marriage can't work with only one of us wanting it to. And leave it at that.
Also, to cover the territory of making him own his choice because this is his decision, maybe a general statement along the lines of "as much as you'd like me to be in the same place as you, I'm not. I know in my head that I'll eventually get there, but my heart hasn't caught up yet. For you to expect me to immediately agree that this is hopeless and that I shouldn't love you is cruel/mean-spirited/foolish (don't know the word I'm looking for here) and not the way that my emotions work.
BD
My latest
Me: 36 W: 35 2 D: 9 and 5 T: 16 years M: 12 10/4/06: Bomb 10/5/06: Ended A 4/22/07: ILYBNILWY