Do you really want to see her every school day? No I don't really, why? because she fired me as her husband therefore I should not be available to her when she needs me.
Do you think this will be good for you? NO, would make me feel like a doormat, being used at her will.
Will you be able to detach & GAL w/ that? No, not if I see her everyday, she is super hot and I miss her a lot and that will only make things worst for me.
Will this make you attractive to her? No because I will probably just be there like a dog wagging his tail in front of her.
What do you hope to accomplish by agreeing to this? Nothing. The hard part is how to tell her NO when it involves my kids.