My girlfriend was behaving immaturely so I broke up

Well, girlfriend is a big word. We have only been dating for about a month but we were exclusive pretty quickly.

Until recently everything was going fine. It was a bit of a honeymoon phase. A week ago she went on a three week trip abroad. So we were mostly texting and occasionally voice calling.

Last Friday night we had our first argument. It was during this argument that she had a very immature way of drawing attention. She didn’t say it exactly like that but she pretty much broke up with me on Saturday morning.

Then afterwards she started testing me again and expressed disappointment in how easy I have up on her. She said she wants me to be more of a fighter. I explained to her that I don’t do that stuff and that if somebody doesn’t want me, I walk away.

We had a long discussion on how we both communicate. She said she would appreciate it if I ask her if something is wrong. I said that I’d prefer her to just tell me instead of being passive aggressive about it.

Eventually we agreed that we can try to find a middle ground.

This morning though, she suddenly started being passive aggressive again. Saying things like: “I don’t feel like talking to you right now” in response to me asking “what’s wrong”.

I realized that her style of communication when things aren’t going smooth does not match mine at all. I said something along the lines of “I thought after our conversation yesterday you might start communicating more, but I was wrong”

After this she asked me if I was breaking up. I said yes and explained one more time that we don’t match communication wise. I think she either blocked me or deleted me from her contacts after that.

I’m not overreacting right? I need someone to tell me that she’s immature and this would not have worked out.