Do I want out because I think it will hurt less in the long run? No, I know it will hurt more but I want to be happy and i've sat back and 'let things happen' for too long. I need to take some action to achieve my own happiness and be a stronger, more confident person. I want out of our current relationship. I want out of the dynamic that has dogged us since we met. If I had to label it I'd call it a Love Addiction/Codependency issue.
If it's possible, then perhaps in a while we can start again but I don't know if that's unrealistic. I do want to have more kids (ironic now that I actually want more, I am not in a position to have more!).