Have you thought about, and I say this only for your sake, drafting a separation decree? This would outline what you are willing to do, and allow you to stop the support if that is what you want. There was a good book on this at Barnes & Noble at Mall of GA.
I'm having the same issues come up with my WAW. She is content to have me pay everything, plus! And I am not sure when this will stop. Mind you, I have no problem doing anything for the children, but the thought of financing her leaving me gets on my last good nerve.
It might be worth drafting this even if it is only a discussion tool to use later.
