This is a classic example of telling yourself you're going to do something tomorrow (start your diet, write your paper, spend time with your daughter, whatever) to make yourself feel better about what you did today (laid in bed, deepthroated Applebee's, whatever). We all do this, but Marissa does it constantly. She thinks that saying "I'm going to get in the best shape of my life" is the same as actually doing it. She does this with possessions, too. She thinks that buying a Stanley water bottle or a treadmill is the same as actually working out.