Sorry for any format errors, first time posting here.

My gf and I bonded a lot listening to a certain artist before we started dating and early in our relationship. Our first concert together was for this artist. Later this year, the artist is gonna be performing in the city we met. We will both be living outside the country by then so we will be travelling back for the concert. After purchasing the tickets, she told me she had already invited a friend(F) and another couple of her friends were going to that concert as well.

I was under the impression that this was going to be an us thing a a couple but there’s already more people included in the plan. She stated that “since it’s general admittance and an open floor, everyone that going anyway would ask to meet up”. I told her how I felt about that lack of communication but she just got upset that i didn’t tell her sooner . So AITA?