thirty pieces of silver
counterbetrayal
double cross
et tu
double-crossing
betrayal
perfidy
treason
treachery
rebetrayal
Judas Iscariot
betraying
betrayment
ratfink
grass on
burn
grass up
assfuck
talion
vindictiveness
unbetray
Iscariotism
vengefulness
payback
pay out
getback
counterstroke
self-redress
nonbetrayal
retaliationist
eat one's young
perfidiousness
stab in the back
grudge
reprisal
grievance
score
doublecross
throw under the bus
fink
vengeance
traitorize
rebetray
throw something in someone's face
revenger
retributional
sell
revengelessness
nonrevenge
heap coals of fire on someone's head