I think i made a mistake.

I'm with this girl for like 7 months now and she told me weeks ago that she was going to take one important exam for her in carreer ways (shes trying to be a judge) in another city. The problem is that she was planning to rent an airbnb with a guy friend that would try it too to stay in the weekend of the exam. At first, i didnt mind it at all. I've built a strong dominant leading in this relationship with her so it didnt bothered me in the time she said.

It kind of changed in my mind because i started to realize how bad it sounded and i planned to tell her that i wasnt ok with all this about a week ago. So, i invited her to my place as usual but i had to reschedule for 2 hours later than we agreed to meet up and she got really upset because i just was able to tell her about that after she was already dressed up and stuff

So we argued via text. She complained that i always do things like cancelling dates or being late because of my studies and i stepped my feet down about what was priority to me. I kept answering her untill the conversation was reasonable but when she started with ironic shit i just ignored her.

That no-talking lasted 8 days, and she went into the trip and did the exam, without i having a chance to turn this trip a matter of discussion

Yesterday she sent me a message saying things like how she was upset about all this, that she doesnt get any reciprocate in our relationship and that she was all the time giving in for my schedule and wills while i dont do the same for her.

The point is that i blurred all the exam importance and just keep red flaging in my mind:

"You guys fight and she didnt seek to reconcile before she travelled with a guy friend on the weekend to another city."

In my mind she was shit-testing me to see if i would not give in the no-talking due some insecurity of my part.

I'm confused right now about how to procceed. What you guys think? (bad english, it isnt my first language)