I've only done one full playthrough but my first I plain restarted the game due to screwing things up.
So in terms of paths up to chapter 3 I have:
Ashley Path: Disabled
Valery Path: Disabled
Rebecca Path: Disabled
Jenny Path: Enabled
Jade Path: Enabled
Sung Ji Path: Enabled
Vicky Path: Enabled
Elizabeth Path: ??? Future Chapter
Aurora Path: ??? Future Chapter
So I failed to unlock three paths, I need to experiment more to see if more is possible in one playthrough but the game blocks you off at every turn and it's really hard to judge what the consequences will be. It doesn't feel very natural at times the way you can get knocked off paths from one decision so you can never again hang out with that girl
Also said girl suddenly loses all interest in you lmao. Using mods to increase relationships probably helps but enabling other paths through mods probably would break the game