I think you did GREAT!!! Don't address her feelings, just the facts ma'am and let her stew. Not to be mean, but just to be real. If you separate and/or divorce, she's gonna have to tolerate a LOT more uncertainty than this. If she can't or just doesn't want to, best she know now.
Here's what I really love about what you're doing right now. You are removing "husband type" stuff while maintaining impeccable co-parenting protocols. The difference between apples and oranges is quite clear.
"Show me a completely smooth operation and I'll show you someone who's covering mistakes. Real boats rock." -- Frank Herbert