I have no kids, but i am a developmentally delayed prek teacher. (i know the jokes will be coming with that one...) anyways, T, you did the right thing. Stay for a while the first day and leave. Cry in the car, or on the way out, but not in front of her. If you make a big deal about the split to her, she'll milk it and it will be a problem. Make the clean break. Anyways, congrats. I love teaching kids that age. Hopefully the mrs. and i will be able to have kids in a couple of years... we just got married. not ready yet. congrats again.
oh, on a side note, have your kids wear bills stuff often, especially if you're out of town. I saw a kid with a bills shirt on the other day and i about crapped myself.