Kate Garraway
The former political adviser will receive 24-hour care at his family home.
The presenter told co-host Kate Garraway it was "good to be back" following his on-air clash with Piers Morgan.
"A tower of strength, courage and love."
"I have a fear of the reality of that life," the GMB presenter said about potential changes to the "dynamic" in her marriage.
He has been in hospital for a year after being admitted with coronavirus last March.
Patsy Palmer recently cut her GMB interview short, a week after Piers Morgan walked off the set completely.
The Good Morning Britain presenter's husband is still in intensive care after being admitted to hospital with Covid last March.
The Good Morning Britain presenter also revealed Derek's condition has deteriorated "dramatically" since Christmas.
The presenter said her former colleague had been "very supportive to me personally".
Things got off to a rocky start when the foreign secretary accused Kate of having a "cynical" approach.