Which makes the fact that she actually traveled that far only to let abby live in the end dumb ass hell.with everything that happened and how bitter he must be, I disagree
It was uncharacteristic of Ellie to not kill abby just like it was odd that Tommy would have demanded she go after abby by herself, knowing she might not make it back.
That whole last section did not need to happen if they weren't gonna kill off either Abby or Ellie.