Because of the the shorter amount of chapters, there was a lot they didn't show of when they started dating. Things were referenced momentarily, but not shown completely. I also know that Hwan was in love since before he even revealed his true colors, as it was referenced. His feelings were there and even if he thought it was stupid that they were, he still recognized them. His change happened not because he realized that he loved MC, but because he realized the MC didn't love him. After all, he was calling MC "his omega" before his switch.
When I consider that, it feels less forced. His desperation wasn't because he fell in love, it was because he couldn't keep MC if he didn't change. It also makes sense then why he would have the audacity to even ask MC to come back. He's still an ass, he just knows MC being happy will lead to what he wants.
yea a story with this type of premise should be way longer. it felt like readers are immediately pushed into crazy arcs and its over before we can even blink. also the seme growing desperate for uke felt so forced. idk how to explain. i think his desperation shouldve been gradual. i also feel like we arent in the characters heads enough if that makes sense. every thought they have feels so surfaced level for their kind of circumstances. it has the potential to be more interesting, but everything about this story falls flat. the art is cute tho