All that you post is exactly why everything went to hell at the end of the episode.
Eddy dies --> Thawne doesn't exist --> Barry's mom lives --> Eddy's death doesn't happen --> Thawne does get born --> ...
Huge paradox which messes everything up :)
There really isn't a paradox here. I would have complained about exactly the same thing, but the writers patched over this by having one of the characters explain that every decision results in a parallel universe and that when Barry goes back to save his mom their current universe would continue as-is while Barry would exist in a separate universe where his mother had not yet died.
The idea of time travel should never have been introduced in this series. It's a supremely cheap plot device and makes the drama we see worth exactly nothing since there are infinite parallel universes. This is what also happened in Star Trek: TNG and it's all down to poor writing and no forethought.
If every decision split the timeline then that means RevFlash would have have come from the universe where Eddie lived and nothing would have happened outside of Eddie being a dead idiot.
Time travel was in episode one and it's a pretty big part of the comics. It would be hard to do the show without it.
Well this RevFlash was from the future and lived in his timeline the event, even if he dies for him, in his perspective there's no paradox. This is not RevFlash time travel to the past to change it, he was "trying" to build his future :)
Shout by echelon_fourBlockedParentSpoilers2015-05-20T11:54:28Z
If Eddie killing himself erases RevFlash from the timeline, then who went back in time and killed Barry's mum? Who rigged the particle accelerator to explode and make the Flash? What put Eddie in the position that he felt he had to kill himself just then? Cisco, you're Vibe now. Explain this with movie references, because it does not make sense.