Can somebody please explain the ending

What i get from the ending is, we all know Yule loves Kyungsoo so when he (Yule) said "hi yule" we can see from his face that he's somehow scared that Kyungsoo might not accpet him again, so after Yule saidthat we saw Kyungsoo having flashbacks of him and Yule together, then he said "yeah, hi yule" it means that he accepts Yule in his life again. Cuz if he didn't he could just walk away from Yule and Yule would get that Kyungsoo never wanted to see him again. That's just what i get....

Thanks a lot!