I get that the author wants to continue the story but that doesn't mean that the asshole jerk needs a redemption arc. This is going to be that cliche of the immature jerk side character who is full of self pity because he had a bad experience. So he'll just hurt everyone around him and blame everyone else for it. Then he'll meet his true love and magically become a good person. I've had enough of this storyline, the author can just end the story but they decided to drag it out by using the worst side character