Limerence for others relationships/ fictional

I have never been in a relationship in real life, I am twenty and I’ve never even had a talking stage with a guy but ever since I was very young I’ve been obsessed with fictional relationships. It all started when I was seven and I watched moulin rouge for the first time. I was watching it with my sisters and we all were close to the same age and at the end when satine died I didn’t have a normal reaction. I started screaming and sobbing, I couldn’t make myself stop. My other sisters of course were crying but they eventually stopped because they had to laugh at my reaction, but I could not stop. After this I would rewatch the movie obsessively and I would make whatever friends I did have come over to my house and watch it with me only to have the same reaction every time. It felt like pressing on a wound that I would not let heal, but I just don’t know what that wound was considering I had never been in a relationship and I still haven’t to this day. I eventually started watching other movies and consuming other media as I got older and I remember the feeling of getting attached to a couple it felt like being chased by a lion. My heart would pound I would feel crazy I would be rushing everywhere just to try to consume more media of whatever couple I was obsessed with and it was genuinely detrimental to my mental wellbeing and relationships. During Covid I remember the obsession became to much to handle, I became obsessed with so many random people that weren’t even couples but it was just enough to fuel my brain and keep it wanting more. I’ve grown out of all that now, kind of. But even seeing reminders of these past obsessions fuel it again and it feels like there’s a weight on my chest and my stomach feels like I’m going to throw up and I just feel like I’m right back in it again. I genuinely have no idea why I do this and I still don’t feel like I’m one hundred percent present in real life a lot of the time, and I just want to know if any one else has this problem.