Thank you for the in depth feedback!
I tried matching the dialog box with the other UI elements of the game for now. I'll change it on a future update along with the font
For the mood mechanic, it's true that it does lean more towards the sex part of the game. Chloe's dialogues reflecting her mood during the daily life part were actually introduced from the most recent update and I'm still constantly looking and playing around for ways to integrate it more when interacting with Chloe outside the H-scenes. I personally see Sweet mood as Chloe trying something different for the MC but I can see why it might seem so out of character. I think I did overdid it a little bit but I can totally rewrite it so her tone still match Chloe's while keeping the "sweet" vibe.
On your 2nd to last point, the game does have a linear affection system separate from the mood mechanic. Interacting with Chloe and giving her gifts increases her affection and its how you unlock new story and mini events. All the H-scenes available right now are unlocked immediately, but I will change that on the next update to tie it with affection and maybe with some special conditions. Though yeah, Affection and Mood dialogue may clash especially when Chloe's affection is high but I think it's fine that way. People do get pissed when you don't give them enough attention. I guess the problem is the game doesn't quite reflect that properly right now since mood is mostly increased with snacks so that's another one on the to-do list😅
For your last point, I think it's just the nature of the genre(JOI). I do try to keep it fresh by having various H-scenes to choose from and making mood actually affect the H-scene apart from dialogue, but I understand that not everyone vibe with that so I've been contemplating for a while now on making the H-scenes optional where the player can choose whether to do it or not but it kinda invalidates a lot of stuff, like the H-scene items and the "buffs" Chloe gives so I've been holding off on it for now. It's also the reason why I made the Challenge Mode(H scenes are shorter) and the free mode which I'll make soon.
I do have an idea where the players can choose at the start whether they want the game's H-scenes to be JOI or function like the free mode, but that's almost like remaking a huge portion of the game entirely, so I'm still on the fence with that.
Again, I really appreciate the detailed feedback! Comments like yours really helps a lot!