Oh Beth, I wish I was there to give you a hug. I also wish I knew what the right thing to say is. Unfortunately I'm the opposite woman - talked everything to death and bought everything up to be a big emotional confrontation (oops!).
When I read your possible to email to H there is a sense of a bit of a guilt trip, and a bit that you are not really in control of your emotions. That's just an observation (believe me I've done the guilt trip and hysterical emotions a million times more than your email, but my H just switched off!). So I'm going to assume that your H is going to pick up on the sadness too.
Is this what you are aiming for? Do you think this will draw him closer to you? It might - I have no idea - of course you know him better than me!!
Maybe there is a third alternative here that you can find. Something that expresses that you are strong and independent but that you are not taking any of his crap anymore. Set a boundary in a way that makes you feel good about yourself. How do you want H to see you? I think something a bit more funky and upbeat.
What do you think? (again please ignore if I'm way off line!)