Personally, I think if it was really Depression, it will always be there...sometimes under control, sometimes in control.  I think new people, places, or things can temporarily distract d individuals.  I think d individuals often think "if only"...if only I had a new car, bigger house, better job, new girlfriend, etc., everything would be better.  When they get that item, they often find out, that's just not true.  I finally learned to delay making any changes during my husband's d because in our experience, it does NOT help.  At one point, he suggested that he needed an entire floor of the house to himself...somewhere the kids & I were not allowed...with a big desk & lots of space..."all husbands have one."  At one point, his problem was a totally crazy sexual idea of his...all wives did it for their husband's except me...didn't change that either.  Point is that in the beginning, I truly believed the "if onlys" & made changes in myself, our home & family to try to help him beat the d.  NONE of the changes helped...& there were some biggies.  I finally realized that he needed to change himself...it was about him...not me, our family, our marriage, our house, our life, etc.  If your husband truly has/had d, I honestly think it will always be there...right now, he is just distracted by a shiny new toy