Admitting you were wrong in a situation (or opinion) is a very mature and strong skill to have. It also makes communication and relations much more honest. A lot of people never learn this.
So, if you know you were wrong. Sincerely apologize. Then stop! No complaining, no blaming. And especially no bitching about being triggered. Being triggered is on you, not her.
If the conversation is going well enough you might be able to explain yourself a bit for mutual understanding. But for now it is on you to make up for the breakdown in communication. You don't have to be her friend, but you are both adults and need to work together in at least a professional courtesy. Save any feedback for a later conversation and try to keep emotions out of it.
Good luck!