A wife is not part of a husband when God created living beings. A wife is only a partner of the husband living under the same roof who are the reasons or carriers of having progeny for sustenance of our race. All living beings have a wife or a husband who are just partners in the creation of new life. Naturally their horoscopes will also inter influence while they are living together. Even the children’s horoscope will influence their parent’s horoscope. The unit of influence is again dependent on the surroundings in which they live like Sunlight which will vary from direct exposure to standing under the shade of a tree or when in water. You cannot express this influence in units. A husband can have many wives and vice versa, but not at any given moment.