I think if you file, the reason would be because you are ready to move on with your life, that you are not going to spend any more time waiting for him but to concentrate on your future, by yourself, with your kids. If you are doing it to poke at him, that may work, but you have to be prepared that it won't.
BTW, your kids are great!!! Mine are only recently taking care of themselves better and helping me with housework. And that's not without me asking.
