People who evolve outgrow the people in their lives that aren't growing. It's a force of nature and a byproduct of evolving. This is why a S can come back, but if both people don't find and resolve their baggage which caused the problems (the symptoms of the underlying dysfunctional R skills) they will never have a healthy R.
I have a belief this is why we are attracted to the people we are attracted to. It happens at a totally unconscious level and has everything to do with issues which need to be resolved in order for us to grow into more complete, integrated, healthy and vibrant people.
I'm going to internalize this as this may turn out to be how my sitch goes,too.
An upside to this evolotion is we may also meet people who ARE evolving. That's good.
As far as the being attracted to to certain people, I also thought of something equally pertinent. Consider how many people surf this board and our threads.
And yet maybe only a half dozen will post and watch yours. They must be seeing/sensing "something" that compels them to stick around.
And, again, as far as evolving, I now know some interesting folks with a similar goal all over N America becasue of this little experience.