Trying to make a Dating Sim...

                Hello everyone, I am kind of lost, my girlfriend is addicted to dating sims and i thought it would be nice to make one for her 😁.

                My original plan was to make a true html game, with only html, js and css, but i am having trouble designing game program.
                My main difficult is how do I manage the scenes(I am calling every piece of dialogue and it's possible answers a scene) without refreshing the page, I was thinking about loading the game scenes from a xml page, and the input that the player chose will only change the object loaded from the xml file, but i don't know if this option is optimal.
                My other option is to use PHP,  I could even store the scenes into a database, not the cleanest solution....
I am kind of lost, never coded one of this before, does anyone can help me figure out how to manage the system for a game like this?