This was great! I really like what a good dude Kalei is because I think it's kind of necessary for him to be a walking green flag for this particular story.
Spoilers
Him being the one to inform you that you've probably been having panic attacks this entire time, as well as being able to help manage them (and of course my immediate reaction was, okay, who does he know who has panic attacks--so it was a good touch to get into that.) really works in the games favor with such a limited cast.
I also really like Geist. I think you can tell he actually does care about you, but his way of caring about you is toxic bordering on malicious. That's why I love the bit where you call him out like 'It seems like YOU'RE the one who hates me.' It's also why I like that, in the 'good' endings, he keeps judging you but in a slightly less toxic way. Worrying about your lack of exercise, or how much TV you're watching without doing other things. At the same time, I enjoy the bad ending where you clearly are having a depressive episode without realising it.
It also kind of gave me vibes of that one brain parasite game.
Overall, I think the game was well done, I would have liked more endings (I got three, I think that's probably it since there were approximately two answers per question and one about friendship or romance.) just because I always like moar ending, but it's not because I felt the story was incomplete.
The ArtBook is also cute, and I appreciated having the artistic intent for Geist in there.
Lastly, as this is my second game of yours that I'm playing (I plan to play the other one this weekend, if I have time!) I want to say that I appreciate your use of language in all of your stories! It's cool.