I had an odd dream about a time-loop and then I met myself

So guys, I really need to share a dream with you that I had several years ago, as I am still thinking about it often.

It started out with me doing mundane things with my then bf. We went somewhere, nothing special, cant remember where, but then a murderer appears and kills by bf right in front of me and the pain of his death was unbearable.

Then I am with my bf again and we do the same mundane things until suddenly a murderer appears and kills him. The pain of his death felt so ovetwhelming and in my grief I realize, that I had felt this pain before.

It happens again and finally I realize that I am experiencing the same day over and over again, my bf being murdered and me grieving him.

The next day I tell my bf about it, tell him that we are in a time-loop and that he will die if he doesnt trust me. He believes me and I tell him that we have to break the loop by changing the sequence. I convice him to get to the train station with me, so we could escape this nightmare.

The moment we board the train, I feel the relieved, feel like we succeeded (now the story gets wild), but the moment we step into our private compartment a man is floating above the floor of the train, grinning at me. His eyed were all black abd his smile evil and in that moment I knew the demon had won.

He snipped his fingers and the lifeless body of my bf fell to the ground next to me. I knew it was over, so I surrendered myself to him.

The demon took me through time and I knew I was his companion now. It was clear that he transported us to the past, so I had no reason to try yo escape him.

Next, we were sitting in a restaurant and were eating something. People were all around us and suddenly I see a little girl, about 5 years old. She is energetic and is running around and I realise that its me, as a child.

I quickly look away, as I dont want the demons attention on the girl, but I am aching to speak to her. Miraculously the demon leaves me alone for a ew minutes and I manage to talk to myself.

I try to talk to the girl and warn her. I tell her that she should never get with that specific bf ever (as I eant to save his life) but the moment the words cross my lips, I realize that my warnings are in vain as I am still standing here and this is a paradoxon.

Then I wake up.

I am interested in your thoughts on this one. I sometimes have very detailed dreams (less the older I get)