Macbeth in Act 3

Macbeth In Act Three
Here again there is a difference between the characters of Banquo and Macbeth. Yes, it is easy to criticize Macbeth and state that he is vulnerable to temptation but that would be an unfair statement to make since, honestly, he is like any human being to fall prey to the prophesies when he sees the way the course of events unfolding. Macbeth must kill again and again to conceal his secret but that is not to happen for long. The act of killing is now a thing of ease for Macbeth since it is this act that is going to decide his survival on the throne. That said, it is no tough matter for Macbeth to go on ahead with the villainous deed of finishing Banquo and that he, Macbeth, gets done easily. He is accelerating his own destruction. Every action of his shows recklessness.
There is no doubt that he is a brave person but he is also becoming sneeringly vulnerable to the power of the supernatural evil. Evil slowly gets the better of him. He also becomes very hardened and he can craftily manipulate the weakness of the others to suit his own ends. Lady Macbeth seems to have done a great job in making her husband the kind of person he is today… totally different from what he was when we first meet him.
It would be incomplete not to mention that he has become shrewd with an obvious deterioration in his morals standards. With the progress of the act {three}, we find him getting more determined to achieve the royal title irrespective of the cost. He is not actually going to leave it to nature as he had said earlier in the play. He is, infact, going to make nature carve it out his way. His ruin is in his own folly.
There is irony seen in Macbeth’s murderous act. He displays envy for the very person that he “laid to rest”, Duncan that is, since the very purpose of that is defeated. Macbeth has now got the throne via the route of usurpation but he is the the one who is most insecure.
Does desperation get better than this? He is keeping his very confidant...