Don't read too much into this. She could just be calling your bluff. "Oh you are going out? Doesn’t bother me" ya right. Maybe it did maybe it didn't but if it did she does not want you to know if it did bother her... Let it go. I do agree "racing to go out" is not good. In your sitch you need to let her know in advance. Don't do to her what you would not want her to do to you. You would like advanced notice also right?
Remember everybody sitch is different. What works for me may not work for you. The idea is to try something and if it works great. If not change it. I would advise maybe next time tell her the day before you are planning on going out tomorrow. You can't shut her out completely. If she asks where. If you just say "out" you are asking for a confrontation. If you say 'out with some friends" you answered her question with out really telling her anything. Say it happily, not sharply tone of voice is very important If she asked you the next day what did you do its "hung out with some friends". Also remember if she really didn't care she would not be asking you these questions.
Husband
And if I claim to be a wise man, well It surely means that I don't know
