A study published in the Family Journal of Psychology says that husbands who display anger can fuel and increase their wives' depression. See the article from MSNBC.com here.
This is why counseling is so very important when going through a divorce. Nearly all husbands and wives have fought and/or argued on a regular basis before separating. Nearly everyone who gets a divorce has unresolved anger and self-esteem issues. These unresolved issues are understandable when the person who promised to love you forever has now told you that you are unlovable, and unworthy of their attention.
Now combine that with the study above, and you have a recipe for the perfect need for counseling. A good attorney will tell you that counseling is vital during and after a divorce. Counseling will make you a better parent, a better relationship partner, a happier person, and a better client. In my experience, the client in counseling has less attorney's fees, as they are better able to cope with the stress of court, negotiation, and litigation processes like discovery.