Justthinking, if it helps, I'm in the same boat, unfortunately. My story differs a lot from yours however, in that I'm still emotionally connected to an ex from years ago. We were in touch some time ago and as 'friends'. And since he re entered my life, I think about him all of the time and as more than a friend. He feels same way about me too, but alas, he's married also.
We did the right thing to do and broke off contact, but months later I find myself pining for him and missing him terribly. I often think about getting in touch with him, but then I come to my senses and I don't go through with it.
As you say, it's ok for people to say 'get a life', but like you, I have one. I have a good well paid job, go out and socilaise with friends a lot, but still I can't forget him and think of him constantly.
What a mess
I know how you feel anyway, you aren't alone.