Macbeths Feelings, Inside thought's If Lady Macbeth insulted Macbeth, for being cowardly and stuff?

If I understand you correctly, I believe that you are referring to when he almost backed out of the murder of Duncan. In that case, I believe that he was feeling a need to prove his worth to her. He also wanted to please her because he loved her, and didn't want to disappoint her. I doubt that he was angered by her words at all, but I'm sure he was afraid of the crime he was about to commit. Her Speech strengthened his resolve and he did in turn murder Duncan. She wasn't really insulting him as much as she was goading him to murder Duncan.