I'd almost forgotten about this series. It looks like it's finally going somewhere plot-wise. It's ironic and sad that getting a new life makes you lose memories of your past life. Also kind of dangerous too. Those who forget the past are doomed to repeat it. I do think that the new people this couple are seeing may actually be better suited for them than the old ones, but if they approach these new relationships while having forgotten the mistakes they made in their past ones... they may just make the same mistakes again, unfortunately.
That said, it doesn't seem like they were as compatible with their old spouses as they needed to be, and the new love interests do seem much more suited to them.