<human>: Give me the gist of the text in a nutshell

So I have been on back to back business trips and vacation so I have been out of the office. While I was out of the office I let my employee  use it and be acting manager for the weeks that I was gone. We talk a lot and she is always telling me how she is trying to diet, and control her eating because her husband tells her she is getting fat, and how he is mean to her about it and has thrown away her food.

I got back from vacation and I noticed that my trashcans were full of junk food, and my cupboards are also now full of candy...Apparently she made herself at home in my office. Not a problem, but I got a kick out of it, especially after all of our talks about her dieting and how she was going to be good about it. I have given her a little bit of a hard time regarding it, but nothing too serious. She has alluded in the past that work feels like the only safe haven where she can get away from the people around her calling her fat and constantly telling her to go to the gym or stop eating what she wants. I try to be supportive of her, if anything I would just suggest that she eats healthy food, but only if she brings the topic up. I would never go out of my way to say anything about her diets, not my place.

I called her over and we were talking about how things went in my time away. She said things went good but, "I feel like I have gotten fatter and my diet is out of control."  How did I respond? I said very matter of factly, "I can clearly see that." I have never seen her get such a pissed face so fast. I could tell that she was furious like a fire was burning inside of her -- and stormed off. Moments later, it dawned on me that she had no clue that I was trying to make a joke regarding the trashcans full of junk food. She thought I was saying that I could clearly see that she put on weight, and not that I saw that her diet was off course because my trashcans were full of cheetos and snickers bars.
<bot>: I accidently told my extremely self-conscious employee that I could clearly see that she had gotten fatter while I was away for a few weeks. I think she ran off to cry.