As much as I like Alex's character, I feel the relationship with her begins in earnest too soon... and it ends up becoming a little stale also too soon. It's as if the author has made her a sort of bridge between the MC and the titular protagonist of the game, the hot and lovely Isabella.
A shame, because she's so distant from the typical AVN sterotype. I would have preferred an on/off relationship that continues to be 'no strings attached' or that needs certain issues to be solved before blooming into a real bond.
I know what you mean, but resources are limited.
Every possible branching adds scene setup, render time, writing and the chance for bugs in the script.
This is doable with a team where you can split the work, but as a one man show not really. At least not if you expect updates in a reasonable timeline.
And last but not least, a part of the players is waiting for Isa as a LI, no matter which ending you are going for.
So i had to push that a little bit.
Like I said before, I would do things different now.