Man, Created Immortal?

Two things lead me to believe we were never created immortal, but that God still intended for us to be...

Eve, Deceived

Is it really so hard to believe Eve fell to the serpents coercion? Just how quickly do we distance ourselves from any attachment to someone like Eve, especially when the rules were laid out so plainly for both her and Adam? Do we have any legitmate ground upon which to judge her?