Yes, according to the novel, the ML is going to end up with Ellie. This is just my opinion, but I think it's because the author seems to admire America a lot. I've noticed that the story often highlights America's power and influence. Even though Ellie is half British and half Hong Kong Chinese, she's still a foreigner, which makes me feel that this may have influenced the author's decision as well.

At chapter 71, feel like want to drop this why di i see people said that ml will be with ellie? Ml might as well be with yuri they have more chemistry. With ellie it fill force ヽ(`Д´)ノ