How do Lady Macbeth and Macbeth behave in the final act?

Lady Macbeth is guilt ridden and cannot live with her conscience. He evil act has taken over her mind, and the only way she can rid herself of the guilt she carries is to end her own life.

Macbeth, on the other hand, has become concerned with only one thing..... himself. He is prideful, controlling, and eager to have the power he killed for. He believes himself invincible.