So Judas wrote a book, a gospel they call it. In this gospel it is said that Judas didn't betray Jesus. You see, you can't betray someone who wants to be given up! No, instead Judas introduced Jesus to the Jewish/Roman mob. I can see it now:

Judas: Hey, guys, I want to introduce you someone.

Mob: Nice to me you...

Jesus: Likewise, I'm sure...