The game is very good, with lots of potential, and because of that i feel compelled to put my 2 cents of constructive critcism for the dev...
Some choices put you on a certain route, regardless of the previous, which does seem a bit simplistic. For example you can have 100% loyal responses then decide not to call her and bam! cheating route, which feels a little 'meh', a bit out of character maybe, expecially because nothing outrageous happens there to justify it. Same thing with the panties and the cuck route...
Also it's pretty obvious where the choices will lead, which is a good thing for the delicate (to some!) subjects of the game, but i think it takes away a bit from the theme of the game: "Relationships between lovers are tested by distance." Well, not really tested if all you have to do is take the conservative choice to keep her faithful.
I'd love to see Julia show some more agency (that's when this game truly shines), maybe pushing back or growing bolder if the PC is too "boring", from the lack of intimacy, etc... forcing the player to make tough decisions (kinda like solving a puzzle), instead of having a straight up path/outfit/scene selection.
I know it's the first game and it's way, way easier to do it this way, but one can always look for the best.
This is all constructrive criticism for the dev, tho because at the end of the day, it's a very good game: it's teeming with passion, well written, with good characters and great art. keep up the good work!