Every marriage should have a good balance of partnership and friendship. It is difficult and there are many couples who fail at it every day, but it is possible.
Marriage is the only relationship where we should have both partnership and friendship. Ordinarily, in any other relationship, it is considered unwise to mix the two. A business partnership that starts from friendship will usually hurt the friendship. And a partnership that develops into friendship can hurt the partnership. Unless everyone understands the difference and they are able to balance the two properly.