I did very specifically go over a buch of other things that I don't want talked about with anyone else just so that hopefully this kind of thing can be avoided in the future. I've also asked that if he feels at all like it might be bordering on something that may be an issue for me that he asks me before discussing it with anyone else first.
It is challenging to know where the line is between what is ours to share and what belongs to someone else, especially when the last 17 years of your lives have been spent together. There is a lot of overlap and shared experiences, some of which have a more personal spin on them to each of us than others. So when do I get those mind reading abilities???
Everything will be ok in the end. If it's not ok it's not the end.