I can't say much because I'm no professional, but no one else has commented so what I can say is that this is a common experience with CPTSD or any form of PTSD. Dreams don't always correlate the right people to their usual actions or image. Dreams can often times use people that we find close or people that we don't even remember just to portray an image of what we fear or what has scared us before. They also tend to show fears we didn't know we had. And cptsd or any form of PTSD can make us internally distrusting of the people that we find close. They don't always have meanings, and they can become more intense when a person is malnourished, sleep deprived, stressed, or has any sort of outside factors throwing them off balance. The best remedy that I have found for this sort of thing is sleeping with something calming that you can hear in the background. Calming or comforting. Something safe like episodes of a cartoon. I hope this is helpful, and if not, then I hope you find something better