Jeongguk left Taehyung when he find out that Taehyung is pregnant with his child. taehyung swore he will never forgive him .  Years later, Jeongguk had an encounter with his son but his son look at him with hatred in his eyes.  

Jungkook fell for his step brother Taehyung and it was the last straw for him when he saw some red head dancing with him just a little bit too close. 

There were two cousins who fell in love with super homophobic parents.   

In which Jungkook loves Taehyung in a way more than a friend would. In which both of them have always been just too blind to see what really lies behind each smiles and loving gazes. 

Jungkook can't help but be the jealous clingy boyfriend when it comes to Taehyung.

"Jungkook is my life" He said, and then he chuckled.  "I don't want anything else. He is enough for me and I love him more than I could ever love myself" He continued. 

It would be easy if I could just tell them and Yoongi about the plan. Saving heart breaks. But Jungkook wasn't a fool and Yoongi cannot keep a secret. None of them actually.  ​​​​​​