there are two other endings you can get for day one!
ending one: walk with him --> reassure him --> side with him
ending two: walk with him --> ask him to elaborate --> let him leave
if you don't like yunhao you probably won't like these endings though ^^;
yunhao is technically the only "love interest" but you don't /have/ to romance him. if you dislike him so much this game is probably not for you ;; i'm so sorry for your experience!