Well in the end none of them ended up together. The flashbacks was Yule thinking back on everything he did main character and it kinda was him realizing everything that he did and that he couldn't be able to hold the main character if he died because he loves the main character... it's fucked up but yeah...
He ended up with Yule though...
? He did? It seemed as he didn't end up with anyone. My bad if he did.
I think it was the last chapter. Yule showed up at his new place of work. He'd started "stalking" him in a sense? People coming into the convenience store kept saying there was a creepy guy hanging out outside. Then coming right to the end of the chapter he met Yule outside of the convenience store, had a flashback about saying something along the lines of them being stuck together because of how much they had hurt others. It's an insinuation that they ended up together.
Honestly.. this manga has been one fucked up story i have ever read in my life. So many disgusting raped scenes every chapter i couldnt take it. It was like SEX SEX SEX in ur face. but i kept reading cause i had hope they would eventually work it out but nOpE. EVERYONE IS FREAKIN CRAZY!! But lowkey it made me cry in the end. also someone care to tell me what happened in the last chapter with all the flashbacks? did they end up together..?! its soo weird, i never fully understood that part.