can someone explain who duna is and the main storyline i lowk dont wanna read the main sto...

duna and him were dating back when he was in college, they were in the same club (literature). he was always super critical of her writing, and in general just a bad boyfriend to her. he never made her feel loved or anything. in the present time, minho would always come crawling back to her for money and a place to stay, and duna took him in because she pitied Minho (his life was shit, nobody liked him) not because she actually still loved him. anyways minho tried to get her back but by then duna found somebody else, and she was done with his ass for real. then minho wanted to off himself but he went to wookyung for money instead and yeaa!