Much as I want to say you brought this upon yourself when you chased your sister out, the fiance is even worse. She at least is able to say I was wrong, although she is being just a bit overly hard on herself as almost no one (save a manga hero/heroine) could keep up with that kind of workload for long,. She seemed to do well enough when it was just her own work, even if she wasn't her sister's equal. He on the other hand talked about being concerned about her, but as soon as she was gone his main concern was how her plight would impact his rating among other people rather than trying to sort out the grievously unfair workload. Well, at least the pass it on to others coworkers will get their punishment when they have no one to pass their work onto during her vacation. Hope it shows them getting what such treatment deserves.