A femme fatale describes a woman as beautiful. It will be the powerful men who make other men ashamed. They beat your man and then take you away, leading to disaster. Just like in ancient times, the princess of which country was at war, or the princess was beautiful, and then was taken away by the monarch of another country. This is the femme fatale

That depends on his usual work style or personality.

First, it can be that he hates you, thinks that your words and deeds make others misunderstand, has information that makes him hate you, that you are a vase, or that your job depends on your face, and so on.

Second, in order to attract your attention, he is interested in you, which is a means of chasing you.

Third, it may be that his personality or the educational tradition he received since childhood made him feel that you hindered him or other colleagues at work, and so on.