To have odd dreams about someone you love or loved

I'm from brighton England I'm 23 and I have been having odd sex dreams about the same girl for the past 2 weeks and some change Ive known her since I was 13 and but we became kind of distant after a incident occurred but were still friends we I see her everyday in class and we chill but these dreams keep coming the most recent one we were on a bus and she pulled down her pants and had a penis and started dancing for the guy next to me then she danced for me then let me penetrate her "ass" and told me she loved me that's why I got to penetrate and her insides hurt a little but felt good then I awoke