Hello Friend, Good that you are seeking a help here. Marriage relationship is all about give and take. Caring, loving are common  to build a long-term  relationship, but you can't develop too much possiveness. It won't give you happiness, rather it gets you into emotional battle always.. Try to develop new interests like hobbies, career or other activities which will dilute your thoughts beyond your husband.. Take some guidance of counseling support to assess your suitation and explore the suitation solution to overcome such depression.