Huh? So, if Jin didn't say Cross will disband, he won't refuse to become Yuu's lover?

I think that with what jin said and munakata´s confession he understood that jin and munakata did the same thing because they loved them. Then, he (naoki) thought how would it be to lose one or the other...balancing what he felt, that was the way he could put it into words...accepting his own decision (of choosing munakata) but not knowing yet if he loved him. It felt, for me, more real that way. His priorities were clear, although not that conscious: he preferred munakata, so he let go of yuu; he loved yuu and cross, so he liked cross to keep performing; he understood jin loved yuu as much as munakata loved him. He just couldn´t put in words the overwelming feelings he felt and be clear with himself-yet- ´bout how much he loved munakata. ---Sorry the lenght!! I´m usually a little confusing while voicing my opinions so i tried my best!!

Yea, exactly. He didn't want to lose Munakata, so he thought it'd be a shame if Yuu would ever lose Jin because he understood that Munakata is to him as Jin is to Yuu.