Q: We have my husband's sons about 40% of the time, and I have mine full-time. My husband works in another city during the week so it is sometimes only me and four boys. Now his ex says we need to have kids 50/50 (and kids want to, too), and even though my husband is out of town she still thinks it's his responsibility - and he pays a lot of child support, as well. In reality it will be me looking after them and I feel that I am doing as much as I can, so I have refused. Am I being unreasonable? What's good ex-etiquette?