I've never seen a more incompatible couple in the history of manga. If the main character has to struggle this much—like walking through a minefield—because the girl can end things with him at any moment, then it's clear they can't even last a week in a relationship. It's just too toxic. The mangaka has written both himself and the MC into a corner, making the girl so difficult to please. She's too indecisive and complicated.
If you truly love or care for someone, all you really need to do is look within yourself. There's no need for a "test run" after sharing so many intimate moments together. At this point, it would be more realistic for them to end up as friends because their relationship as a couple feels completely forced and fake, just there to serve the plot.
Anyway, catch you guys next week!