have i been making mistakes too long part 7

[tkdmme]

Well I started writing and left out the latest event that I need advise for.
So S10's birthday is on 2-14 and happens to be on a Sunday when I am supposed to have the kids. When I picked him up Friday after school I asked what he would like to do for his bday. He said that W is taking him to south Florida to visit her sister. The kids have a winter break every year at this time and they have gone to Florida for his bday for the past few years. I was never able to go because of work. Anyway, it was not a surprise that she wanted to take them to visit her sister. The only problem I had with it is the fact that she sis not tell me. I figured since there has been no mention of it, that they were not going this year. I didn't say anything to her and I told my S that it was fine if he went and that we would celebrate when he got home.
So last night when dropping off the kids I asked to speak with her. I told her that I had no problem with her taking the kids to Florida but in the future I would like to be informed when she was planning to take them somewhere especially when the agreement is that I have them on the weekends. She flipped out and said that she doesn't have to ask for my permission to take them and that i was trying to control her. I calmly told her that she was right. she doesn't have to ask permission but i would like to at least be informed. She continued to yell and curse at me and before long she was right back to telling me how this is all my fault and that she wished i was still the uncaring dad that i was in the past. She said that all my changes are just an act to make her look bad. Good God this women is not the same person i married.
Did i do the right thing or should i have just not said anything about it?