Seme is so selfish fking hate him man

I think someone mentioned it that seme is doing this because if this relationship were to move forward, he would have to bond with the uke eventually. If that happens uke would receive all memories of seme, including all that bad stuff of the past. So that’s why he’s trying to break it off. As to why he even started dating him in the first place, i think it might be because otherwise the uke would not have received the new life seme wanted to give him? Like removing him from his toxic family, making him independent by helping him run a company

Then he should have never get close to uke and he just said there relationship are meaningless wtf

He could do all the helping WITHOUT the need to engage in Sejin's life. Become Sejin's fiance isn't the only way to get Sejin out of that horrible family. Ido just can't bear not to be with Sejin but afraid of facing his real consequences if Sejin remembers.