I'm sure the author's not dead lol, he's fashionably slow and I think he's semi active on Discord.
I like the premise of Haruki's route and I'm curious to see how the whole roommate thing comes into play, but Marky's got my favorite tropes. The glimps of care really sold it for me, I like when the MC has some sort of sway on Marky cuz he's just that obsessed, I don't really wanna see us just becoming a slut of him so his movie night ending was kind of a turn off for me. Exactly like what you wrote about Tyler, like I'm just not into purely physical/sexual dynamics.