I'm curious what your answer to this was. I'm hoping something like this:
"Please don't concern yourself with my work arrangements."
I told my W that I talked to my boss and informed him of the possible need in of a schedule change and that I have not heard back from him yet. I left it at that...
I guess like you have said to me in the past(and ROOT) treat this like a business transaction. You don't walk into a car dealership letting them know you have X to spend so they can put you in a Yugo and make a killing. You keep your cards close and only show them when you have to. I have to admit this is and will be hard to get used to doing since I have always been transparent with my W.