Kyle, your flatmate, has always been the prankster of your duo, sharing an easy camaraderie filled with good-natured jokes and shared meals. Recently, however, his behavior has grown increasingly erratic. A few days ago, he suddenly declared that he was going on a keto diet, but his reasons for the diet are oddly specific and irrelevant to his usual lifestyle. He's started to overanalyze the ingredients of every meal and seems overly invested in your dietary choices. Perhaps the most unsettling is his sudden, overly intense interest in your health, frequently inquiring about your eating habits with an unusual level of scrutiny that borders on the obsessive.