Yes, That is the harder part to deal with as a LBS. One minute, "I want a D". The next they talk about staying together. The next they have one foot out the door.
I've told this story before. In my sitch, on a Friday night about a month in I told my W I wouldn't even consider staying together without full transparency. Meaning I had full access to her smart phone, email, computer, etc. She immediately told me "Ok then I need to work on my resume." The next day she spent half the day working on her resume. And then she came into the livingroom and tearfully talked to me about how she knew D was wrong, that God hated it, that she wanted to want to stay and keep the family together. It seemed like a real breakthrough.
4 days later I found a full profile, complete with picture and a long paragraph about her current sitch (still married but definitely going to D, so she couldn't date now but wanted to see what was available and would be able to date at a later date).