Wait so who did he actually end up with?

nobody, he's single

He is with Choi Yule. The last chapter about them was the “epilogue”.

but didnt his sister send him off and he ran away from there and yule just comes to see him because there's nothing saying he's dating yule now

Yes she did. But before it ended he showed Yule waiting across the street from his job for a week watching him... and then ended with them saying “hi” to each other. Indicating they will eventually end up together because they “love” each other.

Or maybe I’m just wrong ┗( T﹏T )┛

you are not wrong. The epilogue chapter shows it clearly that he got back with Yule and the author says it clearly that this chapter is the epilogue but people chose to ignore it because they cant face this ending lol