As an artist myself, I can say that last dialogues would make an artist the happiest they can be. If Jaesoo doesn't change at all then god i'd like to make him suffer.
Making the girl feel down and then suddenly praising her is a legit brainwash technique. I don't understand why people likes seeing it in romance manga.
It has been proven since ancient times that thick eyebrows = best girl.
This one have the potential to surpass Mugi, and I am looking forward to that future.