I suggest you email him and tell him that anything he would like to ask, to please email only.

I'm not saying you owe him any explanation for anything, but it might be best for your children in future if things are ironed out (anything) via email and not in front of them.

Whatever both of your emotions are, they simply are. No point in saying that a person should or should not feel a particular way because, sure...that makes sense. But you can't tell your emotions to make sense, really.

Well, if you can then please tell me how 'cause I sure would like to get a handle on that...