What makes a person a nurturing spouse in a natal chart?
In astrology 7th house represents spouse and the planet Venus indicates marriage and spouse. 4th house denotes general happiness and conveyance. When 7th lord is well placed with benefic aspection or conjunction then the native will get caring, understanding and loving spouse. When well placed 7th house conjoins 4th house or 4th lord then native will have lucky wife and happy married life.
When Venus or 7th lord have positive connection with 5th or 9th house the native will have mature partner, if have positive connection with 11th house then native will get source income from spouse. If Venus is well placed with Mercury and Mars then native will have successful married life and partners will have good understanding between them if afflicted then reverse is true.