AITA For not letting my mother attend my Army graduation?

I (25M) have been away from home at US Army basic training and AIT for the past 6 months. I was a college student before I made the decision to join the army.

When I enlisted, my mother did not support my decision at all and pushed me to stay in college classes that I couldn't afford. She was critical of my choice saying things along the lines of me signing my life away and making a bad choice. One of the main incentives for me joining the Army is for tuition assistance to complete my college degree.

I am allowed to have five people come to my graduation ceremony on post. I chose to bring my father and step mother, my dad's father and mother, and my girlfriend. Upon hearing that I wasn't planning on letting her come, my mother became a toxic mixture of, I'm furious but I also support you now so I deserve to attend. I told her that I want people here that have supported my decision from the start to be here for me and that it isn't fair that she can all of the sudden decide she cares about/supports me for this event. I also don't want to deal with drama and splitting time between my mother and father who have never been on good terms since their divorce.

AITA???