what do you do if your spouse is overly jealous?

If your spouse is overly jealous there is nothing you can do to change him, because there is nothing you are doing to make him that way. This is his own insecurity in something he will have to work out in therapy. I don't know what you mean by overly jealous. Does he question you to much about where you have been? Does he follow you around when you are not suppose to be aware? Does he accuse you of being with someone else. Depending on how bad it is, you may have to do anything from simply talking to him about it or getting a divorce and moving away. Don't ever laugh off jealousy or take it lightly. Women and their families have been killed because of this emotion.