"- You're right I am avoiding you, I really don't want to be around you anymore, I'm tired of you: you're immature, boring & unattractive and I need less of that in my life. Another thing, please don't speak for me, I want my kids, I'm their father, we arranged & you agreed to have them 1 week each, this is your week, deal with it. Next week when I have them I will deal with it and I won't be bothering you for help trust me. As for money, you have money, you're saving up for a trip to vegas and you're buying a gift for a baby shower - don't bother me about money - if you can do those things, you can take care of the kids. You shouldn't of had kids if you didn't want to be a parent. Not my problem, I enjoy being a parent.
Tell the kids daddy loves them and can't wait to see them next week.