I would be more willing to attack Lexi's character if every character wasn't written in this horrible, immature way. At this point it's largely a writing issue rather than a character issue. Almost all of the characters are problematic in their own way.
Erynn is allegedly totally in love with someone from 5 years ago, when her memories of him were as a prepubescent boy. She apparently feels like she still has ownership over him (big red flags), and gets mad when he, a single dude who has his own agency, sleeps with Alexis, a single girl who has her own agency. She has no real right to feel upset about it, and even if she wants to throw her hat in the ring, the MC deserves to make his own choice over who he wants to pursue romantically instead of her just snapping at Alexis for following her feelings.
Layla hasn't been forthright with the MC from the beginning. She lied to the MC about her relationship with the principal. She's immediately super territorial over the MC over Tori the first two times she's met him. She struggles with creating boundaries seeing as how she largely lets Zach just hover around her without being shown firmly rejecting him and creating space. In the conversation at training camp, you can outright say that you enjoy dating Alexis but you have deep(er) feelings for Layla and she just goes with it, like it's totally fine this dude just unofficially dumped her sister for her on the phone ten minutes ago.
Elena is just hovering and third-wheeling around the MC and Layla during their courtship, and I guess just trying to Nice Girl™ her way around MC so he eventually notices her? It's weird and hard to say where it's going. I'm sorry for any Elena players because you get to touch her approximately 4 times the entire game so far. It's a slow burn gated behind another slow burn.
Nikki/Cara get the short end of the stick in the sense that a lot of their scenes are literal copy and pastes of each other. They're essentially the same character at this point with a choose your own model option. But they impulsively decide to break up with the MC during a traumatic period in his life because they hear a throwaway comment that MC hooked up with Juliet, even though it was during the same period where Nikki and Cara were both mutually interested in the MC and he had not formally pursued a relationship with either of them.
Iris is this weird, creepy girl with literally no concept of personal boundaries. She aggressively flaunts her nudity even when asked otherwise, just creeps inside and watches her roommate having sex before introducing herself in the most embarrassing way. She's constantly pushing to try to make out with an obviously uncomfortable Alexis, and using her to trying to perv on Erynn (has she ever indicated any interest at all?). And let's not even get into the backstory where he uses a sixteen year old boy as a rebound dick. I love sex positivity, but it's hard to see a character underneath all the red flags.
And let's not even get into a character like Gabi who's an actual married teacher seducing a student, and I'm guessing at some point Nyx is going to unironically require the MC to be monogamous towards her if you want her ending because the MC has to be a saint compared to the girls he's romancing.
Then you have to consider the weird player limbo you're in if you want to romance a minor character. People like Valeria, Brooke, Emily, Melissa, Lakeyn, ShaCarri, Tori, et cetera all have affection scores. But they have serious scenes every 4 chapters. Are you going to get proper endings with them? Does Nyx expect you to spurn every other lover en route to maybe getting something with them? What are you even supposed to do?
