It looks like the game has a glitch, I was able to "fill up the affection meter" with one heart and IM Pico, he said his backpack and locker were open when they weren't. I assume the two endings are getting blocked and getting friend zoned?
For two weeks this isn't bad (especially seeing as you did everything yourself) but it's obviously quite short. It's really lacking things to do - even the quest items just help you fill up the affection meter which triggers the next scene, so there's no real problem solving or item usage to speak of, just collecting. It's also bizarre having what imitates a dating simulator but only getting one choice at the start of like three conversations you can have with Pico.
None of the components (art, gameplay, music) are bad, but nothing stands out, either. Many Game Jam games flop because they overscope and a half-finished game is released, it feels like this had the opposite problem with a fully functional end product but not a lot going on in it.