What quotes from Shakespeare's MacBeth show how Lady MacBeth is living vicariously though her husband?

Answer 1

"out damn spot out i say"

a deed she did for her husband...

"all the perfumes of aurabia couldnt drown the deed i have done"

a deed done for and through her husband...

Answer 2

When Lady Macbeth urges Macbeth to commit treason, saying, "when you durst do it, then you are a man" (1.7.48).

And to show her superior prowess, a challenge that went:
"Come, you spirits
That tend on mortal thoughts, unsex me here,
And fill me from the crown to the toe top-full
Of direst cruelty!"