Why do men try to make woman jealous with other woman when they can not commit to you.?

Men try to make a woman jealous because there just being men. There is a time in your life where they will just try and make you jealous even though they cannot commit to you. When its women and we flirt with other men and try to make the men jealous the men get all angry and go crazy. I guess they think they can get away with it.