This sounds really tough. When you feel like the your spouse won't really work things out but there are solutions, it probably feels harder to handle, but you will do fine.
You will find a way in time. Without begging, make sure he knows that you want to give it a try. The book is a good consideration, I think. As long as he has the "you before you had kids" OW, then it might be hard.
Maybe, let him have time with the kids in ways that remind him how much better it would be with you.
