https://www.youtube.com/watch?v=uW4pcMN6IBw
NISHIKIYAMA: I can’t let them do it, Kiryu... I’m your sworn brother! I’m NOT watching you die like that!
NISHIKIYAMA: At this point, I’m through as a yakuza, too… And Kazama-san with us! But at least… at least I can keep you from dying in pain. I can end it for you, I can make it quick. That’s all I CAN do...
KIRYU: I’m sorry, brother. It’s my fault you’re being put through this.
KIRYU: Brother, I’ve got one request. After you plug me… Bring my head back to them. Use it to fight your way to the top of the clan.
KIRYU: Promise me.
NISHIKIYAMA: What the hell…
NISHIKIYAMA: Don’t look at me! Don’t look at me, Kiryu, please!
KIRYU: Man the fuck up and do it! You can’t get to the top by crying!
[Nishikiyama shoots the gun- at the ground, missing Kiryu by an inch.]
[...]
NISHIKIYAMA: Can’t do it… How could I shoot you?!
NISHIKIYAMA: Without you, I’ll always be nothing. Can’t make it as a yakuza… no. I wouldn’t even still be alive now if I didn’t have you beside me! I’m just…
NISHIKIYAMA: If you’re not with me, I’m useless! Nothing means anything!
KIRYU: Me, too… we’re the same. That means we’re still just kids.
( or, love is about being the WORSE half of your partner )