There are two kinds of love stages in a relationship, the Mature and Immature love.
Mature love often goes with the line,
"I am loved because I love."
And Immature love says,
"I love you because I need you."
Mature love is drama-free while the Immature love is a drama queen.
And Jimin don't know anything about that. The only thing that's running in his sixteen years old mind is that Yoongi doesn't give him the attention he wants..
.....
"Yoongi let's call this off.."
Yoongi froze, this is not what he wanted, this is not what he expected, his sight blurs from the tears that swelled up in his eyes and he felt his knees is going to give up on him, he can't breathe, he looks up and sob loudly, this is the first time they had a fight like this, and this break him a million times. He can't think properly, his mind went blank..
Jimin is being unfair.