I thinking about the time-line of her divorce/re-marriage, and concluding that she was probably dating Jon during the divorce proceedings. Which is all well and good, but I doubt she spent a great deal of time dating at that time, unless it was a lot of one-offs.

Honestly, I think LKH has problems perceiving the passage of time. It sort of comes up in her books, too - the amount of time between books, or the timeline of the series don't work.