Why did you marry him? I was young. I'm not sure it was anything more than it was the next logical step.
Why did you have children with him? Because I wanted children. I don't mean to be flippant; I don't know that I put much thought into his role.
What has changed? Pre-kids I did my thing, he did his, and when together we did ours. Due to work and school schedules, we had alot of apart time. Once kids came, I think the clash of our different priorities became apparent.
Why will things be better when you are divorced? Because I will feel comfortable in my own home. Because I will be free to do what I want without H telling me why I can't, shouldn't, or what I don't know.