"To all intents and purposes we have been separated for some time now" - that's if you buy into the story that they were ever together in a romantic sense in the first place. Again, Ms Sturgeon ditching the deadweight baggage of a "husband" and preparing for the new phase of her life after the Scottish parliament with a new job, new place to live possibly abroad and a new partner.
I would say it's more surprising that they have lived this lie so long but then I remembered it's Nicola Sturgeon we're talking about. Queen of liars, misremembering, deleted whatsapps etc etc.