Hello. Thank you so much for your input. Version 0.10 of the game (which I am currently finishing) will contain more romantic options ... but not for Alex (the trainer).
I believe the game will stay as it is for the moment, where Alex is mainly there to train / help / witness but not to be really part of the story, himself ... I understand this is something people could find frustrating and I will take it into account if / when I make another game.
That being said, the short story format I introduced in the previous version could partly solve the "love desert" situation of the poor Alex.
Many thanks again for your comment. Hope you will enjoy the next versions nevertheless.