I'll see if posting this here in a better worded way will help me get better insights.

I'm obsessed with a celebrity musician who back 20 years ago wrote a deeply painful, depressing album about a bad divorce, and it's really affected me, even though I've never dated anyone long enough to have a relationship in the first place. I play little movies in my head about their arguments, his anger, heartache and depression, etc, and I play his part and feel how horrible it feels. I actually cry about it, and it makes me depressed and distracts me from my real life. The past few days I've gotten better, but today for some reason I stepped WAY backward and started crying about it again.

I am trying to change my life for the better, and I may actually be getting somewhere soon, and it may be stressing me out. I honestly have no idea why I get this obsessed and feel these feelings when it's not my situation, and it happened well in the past anyway. Why do I keep digging it up like it's real now? Why can't I just let it go and not bother to get triggered by it? Why do I insist on making it my problem and my reality?