Good morning! Since it's Sunday morning already and your question concerned last night, you must have already made your decision. Did you wait until this morning to talk with your son? Chances are your 13 year old son has a pretty good idea already of the tension in your household. Children are a lot more perceptive than we, as parents, realize. Sometimes they pick up on things that the other parent overlooks or has ignored. Alcholics are notorious for their lying and their broken promises. Children are especially sensitive to these negative traits. Whether or not you and your husband talk with your son together, the reality of your separation needs to come from you, not by his classmates at school or through the grapevine. Are you involved with Alanon? It would, also, be beneficial to your son if he becomes involved with Alateen.