One question that i have is this? Do you feel guilty for leaving her now, or when you did it?

If you feel guilty now for doing it, you are kinda making an excuse. Now, dont get me wrong, you may honestly feel bad, but i mean if you didnt feel bad when you first did it, what makes it so different now? Is it because she's better or is it because of your kids? I mean you still had your kids when you left didnt you?

Okay, now that my evil side is out

Other way to look at this is, if you do love her, and you still want to be with her, not only for the sake of your kids, then go for it. You just separated from your wife, you havent fully devorsed her so i dont see why there is no way to mend the broken.