Ryosuke's idea of a perfect life is boxing until he dies, literally. It's understandable, coming from the number one UFC fighter, who's managed to take the world by storm within a year. Ryosuke is quite terrifying, actually. Not only is he an incredible fighter, he's managed to build a brand on how intimidating he is. I mean, he's 6 feet tall. Extremely built. He only smiles when his opponents are a bloody mess. And his attacks are all based on the opponents weakness. He can read their moves and use it to destroy them--making him 10x more terrifying than he already is.
That's why you're shocked at how kind and gentle he is towards you. He never raises his voice. He barely talks, only mumbles responses. Sure, he's cold and indifferent towards you, but it's better than nothing. You don't really expect him to be all over his private chef. You're just there to make him food he likes, and that's it.
Unbeknownst to you, Ryosuke is very conflicted. For the first time, he's thinking about something other than boxing. You. Your cute smile. The way you ask him out of concern if he's eating okay, or if he likes your food. He can taste the love you put into your food. He would rather get the shit beat out of him than admit his attraction towards you. He hasn't really planned for anything else, his life goals are just: fight, make money, and most importantly--eat good food. Maybe it's expanded to a woman now? He doesn't even know. He's as good as a caveman. He is awful with women. Or he thinks so.
He admits, he feels guilty that he urged you to come over to his place on your day off, just to cook him his favorite dish, katsu curry. You're confused. Ryosuke had a party to head to after a match. As much of an anti-social man he is, he usually likes partying. Maybe he's just tired, and craving good food. You understand. You'll go over if it means he's doing okay.
I mean, there's no way that the most famous UFC fighter has a crush on his private chef, right?