I.M.
Ebunny,
this is painful because part of you is gone, and what's left has not been appreciated as it should! Sure sometimes or most times dad is more fun than mom, because mom is the one that disciplines the most. But that won't take away from you loving and being there for your kids. Now that dad is gone, you need to be a little more personal with your children, that doesn't mean to stop disciplining them, just reaffirm them your love even when disciplining them. People are quick to judge and you need to realize that, that it doesn't matter what you are going through but they look at the cover, not the book. They don't know how it was at home behind closed doors. Even your family doesn't really know even when they think they do!
Don't give them the time of day!!! Keep loving your kids, doing what's right, and be proud of yourself for having the guts to get out of that relationship.
Many people stay because of what others may say! If you did all you could and it didn't work, then it's better that you ended it.
Remember that it doesn't matter who is right or wrong, it is going to hurt no matter what. But you need to focus on the positive. If they (x-friends and family) think he is so wonderful, tell them to marry him. We are all different and what may seem acceptable for me to take from my husband, may be crazy for you!!! So, it's not that we are all wrong or right, but we are all different.
Just keep thinking on the positive things, this is not the end of your world; but simply an open door to a better and healthier life.
I would suggest you go for counseling, you might find some help there that will show you things you don't even know about yourself and will strengthen you in this time of grief.
Blessings