Hmm, sounds like what happened with myself, except I ended up being the one to walk away from the relationship about two years ago. We've been friends on and off since then. Somehow I always find myself calling him up every few months to see what he's been up to. We'll lose touch for so long but always end up getting back in contact eventually. Sometimes I wonder if it's best to lose contact altogether, but then I don't see the point in breaking off a perfectly good, albeit sporadic, friendship. He didn't get involved with anyone else after me until about a month ago. He's still very much obviously in love with me and to this day hints that we should maybe try "working it out" again even though he is with someone new now. It makes me feel uncomfortable and it makes me want to shift subjects. But, sometimes I do wonder if I'll find the same connection with anyone else again.