O respectful one, a wife is so helpful that she is called the better half of a man's body because of her sharing in all auspicious activities. A man can move without anxiety entrusting all responsibilities to his wife.
By the Vedic injunction, the wife is accepted as the better half of a man's body because she is supposed to be responsible for discharging half of the duties of the husband. A family man has a responsibility to perform five kinds of sacrifices, called pañca-yajña, in order to get relief from all kinds of unavoidable sinful reaction incurred in the course of his affairs. When a man becomes qualitatively like the cats and dogs, he forgets his duties in cultivating spiritual values, and thus he accepts his wife as a sense gratificatory agency. When the wife is accepted as a sense gratificatory agency, personal beauty is the main consideration, and as soon as there is a break in personal sense gratification, there is disruption or divorce. But when husband and wife aim at spiritual advancement by mutual cooperation, there is no consideration of personal beauty or the disruption of so-called love. In the material world there is no question of love. Marriage is actually a duty performed in mutual cooperation as directed in the authoritative scriptures for spiritual advancement. Therefore marriage is essential in order to avoid the life of cats and dogs, who are not meant for spiritual enlightenment.
(Srimad Bhagavatam-----3:14:19-----purport).

As Lord Rāmacandra is the ideal husband (eka-patnī-vrata), mother Sītā is the ideal wife. Such a combination makes family life very happy. Yad yad ācarati śreṣṭhas tat tad evetaro janaḥ: whatever example a great man sets, common people follow. If the kings, the leaders, and the brāhmaṇas, the teachers, would set forth the examples we receive from Vedic literature, the entire world would be heaven; indeed, there would no longer be hellish conditions within this material world.
(Srimad Bhagavatam-----9:10:55-----purport).

The faithfulness of the goddess of fortune is the ideal for a chaste woman. The Brahma-saṁhitā (5.29) says, lakṣmī-sahasra-śata-sambhrama-sevyamānam. In the Vaikuṇṭha planets, Lord Viṣṇu is worshiped by many, many thousands of goddesses of fortune, and in Goloka Vṛndāvana, Lord Kṛṣṇa is worshiped by many, many thousands of gopīs, all of whom are goddesses of fortune. A woman should serve her husband as faithfully as the goddess of fortune. A man should be an ideal servant of the Lord, and a woman should be an ideal wife like the goddess of fortune. Then both husband and wife will be so faithful and strong that by acting together they will return home, back to Godhead, without a doubt.
(Srimad Bhagavatam-----7:11:29-----purport).

Mother Lakṣmījī, the goddess of fortune, is well known for always massaging the lotus feet of Lord Nārāyaṇa. She is an ideal wife because she takes care of Lord Nārāyaṇa in every detail. She takes care not only of His lotus feet but of the household affairs of the Lord as well. She cooks nice foods for Him, fans Him while He eats, smoothes sandalwood pulp on His face and sets His bed and sitting places in the right order. In this way she is always engaged in the service of the Lord, and there is hardly any opportunity for any other devotee to intrude upon His daily activities.
(Srimad Bhagavatam-----4:20:28-----purport).

Then as far as dama (self-control) is concerned, it is not only meant for other orders of religious society, but is especially meant for the householder. Although he has a wife, a householder should not use his senses for sex life unnecessarily. There are restrictions for the householders even in sex life, which should only be engaged in for the propagation of children. If he does not require children, he should not enjoy sex life with his wife. Modern society enjoys sex life with contraceptive methods or more abominable methods to avoid the responsibility of children. This is not in the transcendental quality, but is demoniac. If anyone, even if he is a householder, wants to make progress in spiritual life, he must control his sex life and should not beget a child without the purpose of serving Kṛṣṇa. If he is able to beget children who will be in Kṛṣṇa consciousness, one can produce hundreds of children, but without this capacity one should not indulge only for sense pleasure.
(Bhagavad-Gita----16:1-3-----purport).

A devotee should observe the vow of celibacy. Celibacy does not necessitate that one be absolutely free from sexlife; satisfaction with one's wife is permitted also under the vow of celibacy. The best policy is to avoid sex life altogether. That is preferable. Otherwise, a devotee can get married under religious principles and live peacefully with a wife.
(Srimad Bhagavatam-----3:27:7-----purport).

All living entities are part and parcel of the Supreme Lord. Unfortunately, in this present civilization both men and women are allowed to be attracted to one another from the very beginning of life, and because of this they are completely unable to come to the platform of self-realization. They do not know that without self-realization they suffer the greatest loss in the human form of life. Thinking of a woman always within one's heart is tantamount to lying down with a woman on a valuable bedstead. The heart is the bedstead, and it is the most valuable bedstead. When a man thinks of women and money, he lies down and rests on the arms of his beloved woman or wife. In this way he overindulges in sex life and thus becomes unfit for self-realization.
(Srimad Bhagavatam-----4:27:4-----purport).

Kāma-kaśmala-cetasaḥ also indicates that unrestricted sense enjoyment is not allowed in the human form of life by the laws of nature. If one enjoys his senses unrestrictedly, he leads a sinful life. The animals do not violate the laws of nature. For example, the sex impulse in animals is very strong during certain months of the year. The lion is very powerful. He is a flesh-eater and is very strong, but he enjoys sex only once in a year. Similarly, according to religious injunctions a man is restricted to enjoy sex only once in a month, after the menstrual period of the wife, and if the wife is pregnant, he is not allowed sex life at all. That is the law for human beings. A man is allowed to keep more than one wife because he cannot enjoy sex when the wife is pregnant. If he wants to enjoy sex at such a time, he may go to another wife who is not pregnant. These are laws mentioned in the Manu-saṁhitā and other scriptures.
(Srimad Bhagavatam-----4:27:5-----purport).

In household affairs the first attraction is the beautiful and pleasing wife, who increases household attraction more and more. One enjoys his wife with two prominent sense organs, namely the tongue and the genitals. The wife speaks very sweetly. This is certainly an attraction. Then she prepares very palatable foods to satisfy the tongue, and when the tongue is satisfied one gains strength in the other sense organs, especially the genitals. Thus the wife gives pleasure in sexual intercourse. Household life means sex life (yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham (S.B.7:9:45). This is encouraged by the tongue. Then there are children. A baby gives pleasure by speaking sweet words in broken language, and when the sons and daughters are grown up one becomes involved in their education and marriage.
(Srimad Bhagavatam-----7:6:11-13-----purport).