I really loved the ending and I personally think it did "fix" lot of issue with main character that made me hate him initially. Jaegu (mc) started as such generic cliche character that it almost feel like you've read this kind of background million times in other generic manga you come across. Its such a stupid background story that not even author gives a fuck explaining the story behind his mother, its just there for the sake of having some background so readers feel "sad" about him. He's a complete loser, who happily takes the beating as long as his family isn't harmed and when they do get in danger he can't even protect them properly without SOMEONE'S help and that is what really annoyed me the most. He's just another cog in the wheel for the story to flow from one scene to another, forced to do things that he really don't want to be part of. I really think daldal really sum up his character when they were on island that he's inadvertently "nice guy" and doesn't have selfish desire for himself, few instance when he does become selfish like telling queen's so called "future wannabe husband" that she sees him and even came over his home or him teasing his bully for being smaller than him, those were few instance he took control of his life and where he shines the most. It comes full circle when he finally does something what he really wants to do, even if it may harm other person's feeling further i.e hope that he doesn't get wrecked or rejected by Queen or the fact he's trying to get together with a woman who is way above his league when he's deliberately told by her grandfather in the past not to get involved with Queen too "personally" and honestly that's pretty beautiful and wholesome.
Do I think ending is rush? Absolutely. I wish I could see more from queen and jaegu as together but oh well something tell me higher ups just wanted to end the series quickly and author was forced to pull the plug. Whatever the reason is it at least didn't end up like some train wreck I've been reading for the few weeks.
Do I believe Daldal is better with Jaegu than Queen? Nah. I love Daldal as a character but I think her character suppose to be a reminder that sometimes no matter how hard you work for the things you want, you might never get those things in the end whether those things are love and affection from someone or silly little things you desire in life. All you can do just experience life and move on to next chapter of your life.