Unless the dev has changed his plans, you cant be more wrong here

This game is far from being "far from over".
The dev plans were discussed here not that long ago - htf dev intends to make Emma an adult (aka legitimate LI), htf Suzy is supposed to warm up (fully) towards the mc, and htf Charli will accept mc as male partner and get over her fears.
The best answer to these questions would be - fast forward few years, bump, everything has changed - a happy epilogue!
Either that or - everything will be revealed in "Hillside 2 - the mc is getting closer", while Hillside 1 will remain as a simple prologue