Couples therapy isn't necessarily the beginning of the end. I think it maybe seems that way because couples wait so long to go that once they actually decide to try it, the relationship is in seriously bad shape. Sounds like you and your husband still get along. Maybe the therapy will surprise you. Or maybe it will help you realize that you want very different things, so that you separate amicably. The situation you describe, where you want your alone time but he wants intimacy, could create some very toxic feelings on both sides if it goes on long enough.