Macbeth is a strange character who originally claims to have morals however throughout the play he loses these morals and commits what in 1606 was perhaps the worst crime imaginable in that day and age, he kills the king. however i ask you to consider, does he do this out of love for his wife? since he is forced to do it or lose her love, and he tries to remain brave for her...if you say yes he loved her, then answer this... if he loved her then why did he completely forget her existence in the whole of scene 4? why did he leave her to go to war?
he often referred to her as 'my dearest love' and other terms of endearment..
however he did not display any emotion when told she had killed herself...
so, i leave you here with the ultimate and Final Question:
Did He Love His Wife?
I think he does love his wife, despite his strange reaction to her death. He certainly lets her influence him. For one reason or another, she seems to be able to manipulate him into doing whatever she wants him to. He was sad when she died, but he was also pretty unstable himself at that point.
I see very little in the way of affection or love from Macbeth toward his wife. He deifinitely values her opinion and is swayed by her manipulations, but that does not equal love. Even when Lady Macbeth dies, he does not express much sorrow--instead he gives soliloquy that philosophically questions the value of the actions one takes in life.
Macbeth either loved his wife and desired to please her or he became ambitious because of her desire to see him as king. No doubt, Macbeth honors his wife's wishes. At one point, he had changed his mind about killing the king, but because of his wife's strong manipulation and control, Macbeth gives in to her desires and kills King Duncan. Later, he could have resented her for being so pushy and controlling. That could explain his lack of emotion when Lady Macbeth kills herself.
Macbeth and his wife clearly have a loving, respectful relationship early in the play. His letterto her demonstrate this. Lady Macbeth also is anxious for her husband to achieve success, and he obviously values her opinion, since she persuades him to murder Duncan. Later in the play, their relationship has been consumed by unchecked ambition, and Lady Macbeth is a shell of her former self. In short, they have a loving relationship that dies along with Macbeth's humanity.
Lots of men leave their wives to go to war. It would very much have been expected back then of a man in Macbeth's position. As far as his reaction at the end of the play, I would suggest that maybe he has just given up hope and has checked out by that point knowing that he has screwed his life up. So I don't think there's much reason to say he doesn't love her.
He really loves his wife as it showed clearly the words they use for her and how Lady Macbeth manipulate and pursuit him to assassinate the king though he was not willing to do that heinous act but on pursuing of Lady macbeth he got ready tp do that.The reason you have mentioned that he didn't show much feelings on the news of killing of lady macbeth herself does not seem much valid because at that time or juncture he himself was not stable and not knew what will happen next either his secret will get disclose so it concludes that he still loves him through the play.