I am not sure how much they intentionally set out to "lie" last week. I think that in the worlds they reside, things happen automatically because the setting and their social words are set up to facilitate eating, drinking, inactivity, and the same old unhealthy patterns. Sometimes "escape" is not just over the top fantasy and pleasure, sometimes escape can wake us up to healthier patterns.
Give it a shot this week. Instead of reaching for dessert, find a quiet spot and take care of business. Let me know how it works out for you. And if you aren't willing to do that, think of other ways to substitute food with your inner sexy –- send a dirty text (to someone who wants it), buy a vibrator, if you have a partner try something new in bed, or maybe the two of you can use the kitchen table for something other than dinner. The more you enjoy your body, the better you will take care of it.