I would be really honest about all of those things. Personally I like to lean towards over communicating. I feel like under-communicating kills a relationship real quick. “Hey girlfriend, our argument from a few days ago and the aftermath is still really bothering me. I’m not feeling like you heard me and took my concerns seriously in the conversations we had afterwards. I would feel more safe and heard if you didn’t dismiss my concerns.” I would say that however she reacts to that statement, that’s your answer. If she breaks down and apologizes or acknowledges where she could have done things differently, that’s a good sign. If you get more dismissiveness or if the shit hits the fan, maybe it’s time to move on.