First time I played I only ever met Kim once at the bar and gave the negative response, then never saw her again until the office scene. I had to laugh because of how utterly jilted she seemed over one tiny past interaction. I like how with Roxy you can close her path just by giving her a negative response the first time you meet and then just avoiding her afterwards.
On that note; how insulting come characters are if you reject them (or in some cases, before you're given the option to reject them). Half of them give a "how could you possibly say no?" reaction and try to attack your masculinity either directly or passive-aggressively. It's like how some men call women ugly, fat, and/or a bitch when they don't get what they want from them, lol. One character in this game will call you a wimp after you reject her but then her friend cuts in telling her to shut up; essentially calling her out on her behavior and how it likely caused the MC to reject and ruin their plans... with the MC then confirming that he doesn't exactly feel inspired to change his decision. The developer is fully aware how grating those reactions can be (and how they can completely kill any goodwill between people).
When I experience people not taking rejection well in real-life, that just confirms to me that I made the right decision. It's the same whenever I hear "it's your loss" when I haven't actually "lost" anything.