I don't know Chris. I know you want to get these things off your chest. I am just not sure that now is the time. I think the time for it is after you have already given him ample time to think.
I wrote my H a letter and MichelleLT did to....both with positive results....but both were after months of no R talk.
He will see this as pressure. Believe me I know where you are coming from, but remember you can't convince him of anything. He has to figure this out on his own as hard as that is to accept.