In my Sitch, from mid-April thru May, my W's plan A was to move out to be with OM. At the beginning of June, the OM sabatoged her plan A (Told W not to contact him for a while as his W had come back to town.) Plan B was to go ahead and move out on her own anyway. She said she got tired of fighting for Plan B (family, friends, coworkers were telling her she shouldn't) caused her to come up with Plan C - which was to look at whether M was worth a try. A week later, she let me know plan C turned into Plan A. However, I discover she was fantasizing a Plan D which was hoping she could have both of us. but plan D seems to have faded away as we both make progress with plan A.
My point in this lighthearted take of my experience is that they are cautiously exploring all options in this point of their lives in hopes of chosing the right plan that will lead to their happiness. They believe they are at that proverbial fork in the road and they have only one shot to get it right. The problem is they are just as uncertain in which plan is the right one and may take a long time for them to choose on their own or until outside influences alters their options.