I had a dream..(venting)

That I did it with someone I’m really into but I know is not good for me. It was kinda hot but idk what it means in my dream I kinda stopped us and she said we just can’t help it. Was kind of a quickie but it was still super passionate. Now I’m sitting here wondering why I dreamt this if she’s not part of my romantic life and I know she’s not for me. Do you believe in twin flames? I used to think she was mine then I felt she was my fake twin now I’m just like wtf…why… she never admitted to the chemistry but irl it felt to real. I dipped irl when I noticed she would deny it to play me off like a delusional fool. Once I left I saw her play with others so I know it’s not for me so why did I dream this why can’t I just erase the past.