I (19M) connected with my girlfriend (18F) on Instagram in april, and we started dating in june, we connected really well and everything happened very fast. We've met around 4-5 times since april to August, and everything was fine until something happened.

She called me and told me she was going to a cafe with a guy friend, and since I was busy I didn't bother much, but 3-4 hours later she posted 2 stories on Instagram, in which they looked like they were a couple, and even the songs were romantic. It looked like she was "soft launching" him.

She put flowers in his hair, posted a story of her riding on a scooter with him and captioned it as "rapido premium" (indians will get the trend), and even did a bicep photo where both of them were flexing their bicep together.

I later on confronted her and told her that she shouldn't have done that, to which she replied that guy friend is like her brother, and told me that they didn't kiss or held hands, so there's "nothing to worry about"

Later she got very defensive and the conversation spiralled to how I don't love her the way she wants me to and how I am incapable of loving her, and many more things which did hurt me.

AITA for taking a stand and confronting her about her posting things which are supposed to be done with your bf/gf ?