Thoughts, thoughts, so many thoughts!
First, I like the game so if you're reading Dev, any criticisms are truly intended to be constructive.
The models are beautiful. Each character has a personality, not completely fleshed out yet, but there is development.
There isn't much of a plot. Since we're still meeting people and establishing relationships, it's not missed yet, but that could be an issue later.
Pacing seems a bit on the rushed side with some abrupt transitions. For instance, MC leaves Melissa's pool well before dinner time, and the next scene is going into the school the next morning.
I have a couple of bigger reservations though. First, you have gated some content behind perfect scores. Mostly it was dialogue options, but there was Layla's kiss in the park and Elena's train kiss as well and possibly others. This might not be such a big deal except that getting max points with Layla and Elena requires MC to tolerate/accept some shoddy treatment from the girls. For example, in the cafeteria scene when Zach and MC are sitting at the girls' table, they come on full aggro on the guys which I thought was uncalled for. However, in order to get the points for the girls in that scene, you have to take their side against Zach who isn't really acting inappropriately. To get a bunch of points with Layla, you basically have to force yourself into her life when she hasn't exactly been very welcoming to you. You do relax the point gateway a bit later on, but max points less two is still a pretty high threshold.
Second, I am concerned about the choice with Erryn in MC's bedroom. MC must either forgive her even though she hasn't apologized because she is completely clueless about how she hurt him in the first place OR carry a grudge ("Two can play this game!") The scene then plays out exactly the same way no matter which choice you select. I hope I'm wrong, but I'm worried that choosing the second choice is going to result in some misguided, hurtful revenge plot. Erryn needs to be told what she did and how it hurt him and given the chance to apologize/make amends. She doesn't need to be hurt tit for tat. In this situation, my inclination is to reserve forgiveness for when it is truly deserved (She at least knows what she did and expresses some regret/remorse about it.) However, I don't think that embarking on a revenge campaign is appropriate either. How about, oh, I don't know, talking about what happened so she knows. I see being embarassed and hurt, but for crying out loud, she is so obviously happy to see him and wants to rekindle their friendship, doesn't she deserve to know why he's reluctant? Perhaps I'm reading too much into this choice, but as you are writing the continuation of this scene, I hope you can keep this in mind (unless that is actually the direction you are intending to take the story of course!)
Lastly, and this isn't really criticism, it's just my reaction to the story so far, I'm disappointed with the direction the Alexis story seems to be taking. Maybe it's an oversight, but I certainly noticed that she hasn't called or texted MC after unceremoniously ejecting him from her home when "someone" came home unexpectedly. If it were just one of her parents, I would have expected her to say so in the moment and barring that send him an apology message, but she pretty pointedly avoids saying anything so much so that MC wonders about it later on. By the end of this update, it's been approaching 48 hours with nothing from her at all.
Good luck! I look forward to seeing how you continue your story!
Edited to fix Zach's name! Oops!