Gar keine Beendenung, ganz im gegenteil, ein Anfang!
Pick a German plane from your stash, do it up in bright, colorful fictitious markings, with "Ulrike!" painted on the fuselage, and tell your lovely wife about Udet's LO! (if she doesn't already know). This way, any time you spend building the model, is time you spend WITH Ulrike, not AWAY from her, and as Borsos, Russell, Lance, Lonemodeler, and others have pointed out, being a long-term sole care-giver will be a drain on your morale. Your wife needs you HAPPY not RESENTFUL!
By the way, MY wife suggested this. She's a psychotherapist whose specialty is trauma therapy.