I have fantasized about the "ski trip condo" scenario where she takes a shine to another guy. Trouble is we don ever travel with other couples, skiing, lake house or otherwise.
I got to say I love the idea of the ski trip scenario. While on the slopes we meet another guy and spend the afternoon skiing with him. Then it's dinner and drinks in the resort lounge. He gets flirty with my wife. She takes a liking to him. Then soon after she's his own personal ski bunny in his room!