I can relate. Only it's also the death of a dream isn't it? The dream of walking off into the sunlight with them and not having to worry about dating again or the uncertainty of being alone. It's the death of being able to enjoy a relationship with the same innocence. I know that having clear boundaries and a very powerful radar for crazy is a healthy thing, but isn't it sad that we have to have that now? I can't help but feel sad that I know the dark side of the world much more intimately than I did before.
That said, I really admire the strength you are showing in sticking to your boundary and following through with moving out when it became clear he would not.