The old boyfriend is unhappily married, and had said he was ready to leave his family for W. He is intensely emotional and professes undying love for her. They both have used the word "soul mates". Recently, he had pulled back somewhat, I believe, in response to W's unwillingness to leave our family for him right now. But W seems to pursue him, expressing hope for them, too, which pulls him back. Nothing is final for them; they both believe they could be happy together, after getting past trauma of D.

What to you mean exactly by "pay attention to this kind of thing"?