lol, so the female lead's friend is a much smarter character than the MC, where she can instantly saw the changes that happened to her, and decides to go straight for the source of the problem, which is none other than the moronic MC with all of his dumb assumptions + shitty cold shoulder treatment...
At this point, it would be best that the MC just ask for her forgiveness, and then both just separate their own way, because he's clearly not smart AND brave enough to handle the pressure.
But of course, this won't be happening, and we're stuck with the dumb MC until the very end, or at least until it got axed...