I give you a ton of credit (and many others here) because you are in the position where you must remain in contact with your H due to the children. I don't have children, so I do not have to face this with my H. To co-parent and remain detached is probably the neatest trick in the LBS's bag. I honestly don't think I could "break away emotionally" so to speak, if I had to see my H constantly with our kids. Definitely keep on reading! lol! I still pull out many from my literary arsenal!! Good luck to you.
Most of us really marry only once. First love endures, even unto our dying day. And we never really divorce.