This is just your opinion...
In my opinion Alexis is "empty calories", feels forced and tacked on after the fact.
They didn't really know each other, didn't talk much, didn't remember each other... she has no history with the guy outside of one stolen kiss 5 years ago.
And that's the only thing that creates this great connection between them... and justifying her "dodgy" early behaviour(behaviour that borders on obssessive), i'm not impressed.
People like Iris, Melissa, Nikki and Cara have a much stronger connection to the MC than she does, don't even bother with Erynn.
It doesn't help that her path has been exclusively "going on dates" for years now, without any form of story and conflict... like she exists to be a sex dispenser and not let the game go completely sexless for 5 updates or something.
Layla has no previous connection(until Nyx comes up with a backstory that you helped her with math once in 3rd grade
) but building this connection with her until it florishes into something is much better than the "you and this chick you have been mindlessly banging actually have this deep connection, go" that Alexis got.