His Rashi is Virgo and Mercury is debilitated in the Navamsha chart, then Yes shakh kare wala hai.
Moon in the 7th house does not mean ki wife ko khush rahega rather it means that the person is strong attraction towards member of the opposite sex. Not to forget the Rahu aspect on the 7th house and Rahu is in gains.
Blessings,
Navneet Khanna
Astrologer