Should I e-mail him and tell him how he made me feel?

I split up with a man about 3 months ago. We had been together two years long distance and it had been really hard and although I understood it wasn't working he treated me with so much disrespect in the end I was really heartbroken. It was like I was nothing and he made me feel like it had never been real to start with. I was supposed to wait around for him to make his mind up but he hurt me so much that i just walked away from it. I've written him e-mails so many times but never sent them. Now I've got to the point that I want to send it, I need the closure of telling him how he made me feel and then I feel like it will all be off my chest. I'm doing really well without him and just want to make the final step of moving on. I'm just worried it might set me back and l my friends advise me not to as they're worried it will upset me. Should I do it?