I got high and fantasised about my ex

Leigha
So whenever I smoke weed I trip out (obviously haha) but today me and my bf was smoking weed together and both got very high. As I'm kinda new to smoking weed I was freaking out a bit and like being silly and he was taking care of me. We ended up having sex a few times and I don't know why but everytime we had sex I pictured he was my ex. Like my imagination was so deep I pictured my ex's hair and it was him having intercourse with me. It turned me on so much the thought of my ex fucking me that I was being way more sexual with my boyfriend imagining he as someone else. I feel awful though, I thought I was over my ex but I'm also unhappy in this new relationship as I feel my new boyfriend controls me. Is it normal to fantasise about your ex while high or am I just unhappy? Soo new to all this confusion ahah 😬