Tuskanini I do not think we are suggesting anything like that.
But most people need some element of alone time, not even 'me' time, you can be alone and content while scrubbing a floor. But on the whole husbands are older than wives and women, until recently, retired at a younger age, so had some years at home alone where they adjusted to patterns of everyday life that fitted in time on their own during the day when their DH's were at work, so that evenings, when their DH's were home, was family time.
When DH's retire and are at home ll the time, it quite naturally disrupts the pattern of how life used to run.
I felt exactly the same when my elder child no longer went for an afternoon sleep. The rythm of my day with 2 small chldren worked round the quiet period after lunch when they both had an afternoon sleep and I could be alone with myself, doing domestic chores, but alone.
Then DS no longer needed a midday sleep and my quiet time went and over the next few months until I finally adjusted to a new timetable for my life, I nearly had a nervous breakdown.
I expect any husband, retired before his wife, and pottering around the house to his own timetable, feels exactly the same when his wife retires.