This is a great thread. I wish I'd had it 3 years ago. Honestly I think I could only make sense of my situation, and heal from it, once I was out - it was impossible to really see what was happening to me when I was so saturated with stress all the time. No physical or sexual violence, but emotional abuse and coercion which ground me into dust.
So: I wish my friends had been honest about what they thought of him. Turns out loads of them thought he was a prick, even though his public persona was Mr Amazing, What A Great Guy. But everyone kept their thoughts quiet; which made me think that I must be as broken and needy as he told me I was. I wish someone had told me that the reason I couldn't see a life without him, even though I was so unhappy, was because I was so unhappy. I wish someone had told me how much I had changed in time I'd been with him - smaller, more anxious, constantly ill, apologetic; when I used to be outgoing, bold, cheerful. Like someone says earlier, I wish someone could have said, look, he's just a man, nothing special.
I am so much happier now in way that feels like a warm bath. Incredible to be in your own home with no fear of being yelled at, told that everything is always your fault, only being judged by the cat. Amazing to have people in my life who love me and think I'm great when he made me feel like a broken appliance. I wish someone could have made it clear to me that, if I left, my life would actually be better.