HELP

I read this uncolored manhwa long long ago. It started when a somewhat timid guy witnessed gangsters ganging up on a lady and the mc stopped the gangsters so they put their attention on the mc. In comes the leader of the gang who hated the mc then he put out his burning cigarette on the mc's meat stick. Fast forward to so many happenings, they got closer and closer until they started to depend on each other and love each other. A lot of people were against them though especially the parents.
Further on forward, some really dark shit happened and their lives became endangered. In order to protect the mc, the seme left and disappeared.
Years later, the mc is there sitting on a cabin with a person who's face is covered and they have a conversation about the seme.
I vaguely remember them promising that they will meet again and find each other. And that guy with the covered face was actually the seme.
It had a bittersweet open ending.
I really want to read it again please help me
Mc has black hair and seme has blonde hair. It kinda has bananafish vibes too.