Shawn’s idea of a favorite meal before Vadim was basically whatever didn't fight back. Cheap, stale, microwaved, expired. Gas station burritos, instant ramen, dollar menu burgers, half-cooked leftovers, expired canned stuff if he's truly desperate. Energy drinks & cheap off-brand soda, even if it's flat or been out all night. There's also that weird layer where he likes the idea that what he's consuming might be "contaminated" in some way. Not always consciously, but it feeds into his whole parasite fixation.

Vadim's taste in food, in opposition, is almost ascetic. On the surface, he presents it as "healthy." Underneath, it's a mix of disordered eating and OCD-like compulsions that he's refined down into something ritualistic. Simple, high-protein meals, clean plating, nothing excessive. He cooks as much as he can himself, and has a strong distaste for fast food. Frozen protein meals if he's desperate. Black coffee, mineral water, and scotch or vodka sparingly. Function over indulgence, etc., etc.

Watching people eat is diagnostic to him. Sloppiness, overindulgence, pickiness: it all tells him something. Once Shawn moves in, yeah the non-stop junk food is basically over. From there, it turns into another axis of control. Junk food gets thrown out without warning, meals become scheduled, portions are controlled, and Shawn is expected to finish everything or deal with consequences. Eating becomes something observed, corrected, and sometimes commented on in real time.

The more he acts against Vadim's will, the more Vadim's OCD manifests itself unwillingly, adding another layer to the way he behaves. He has tried to enforce specific rules in the throes of discomfort about chewing, pacing, or finishing meals, reacting disproportionately to anything that feels "off", etc. This is where it gets uncomfortable in a very specific way.

Vadim doesn't just impose structure on Shawn because he wants to control every aspect of his life; he genuinely believes Shawn is filthy, undisciplined, and that his habits need to be corrected for all of this to work. And the worst part is that physically, Shawn probably does start to feel better at first. More stable energy, less constant nausea, which just muddies things further in his head.