Is the fact that Batman refuses to kill Joker selfish?

insideonemind:

He knows that Joker is never going to stop killing, sometimes it’s scores of people at a time. But he’s still all like, ‘Oh I will not break my moral code’ despite the fact that hundreds of others will die because he refuses to do so.

Batman is just in love with the Joker, which is why he refuses to kill him. Obvs.