I just registered with PC, so I am new here and don't know if you are still around or if you will get this. However, I just wanted to say that I TOTALLY resonate with EVERYTHING you said. I've been struggling with this practically all my life and it has seriously impaired my ability to function on the job, or really engage with other people because no matter what I am currently doing, in my mind I am obssessing with this person. This problem has had huge effects/consequences on my life, and killed every truly meaningful relationship I have ever had, to the point where I am now completely avoiding people.

Anyway, if you are still on here it would be interesting to find out where you at in this journey, and what has helped Vs what has not helped etc.