So last night around 11 pm I go to bed and my girlfriend stayed in the living room. About 30 min after closing my eyes I get up out of bed with a horrible sense of fear and anxiety and very disoriented, as if i was dreaming. I go to the living room and want to have my girlfriend hold me but she seems afraid. My anxiety is through the roof as I can feel my heart beating through my chest. Soon I snap out of it and do my common knowledge test to confirm that i am awake (i.e. asking myself what my name is, the date, time, location, etc)

My girlfriend was completely and reasonably spooked. She thought i had gotten possessed, she said my eyes were so wide and my speech was muddled and i was aggressively asking for help. She was scared of me.

After I "woke up" my girlfriend excuses herself from the house and pretty much runs away to an Uber and goes to her mom's house a whole 45 mins away from us. She didn't tell me and i got even more scared for her safety, after i called her she told me what she had done and i was full of shame and guilt. She assured me that she trusts me but she couldn't tell if i was going to hurt her when I'm not in control of myself.

After looking into it, it sounds like confusional arousal. Never had it, never heard of it and frankly it's killing me with the uncertainty of it happening again. My girlfriend has since said that next time anything like that happens that she'll be better prepared for it.

I don't know if you all can help guide me towards a solution or if you think this won't happen again.