The measuring stick

Before any of the mechanics, the standard the Qur'an sets. Marriage is given a purpose in one verse, and the three words are rest, affection and mercy. And the image used for a husband and wife is a garment, mutual and covering, which is not the language of service in one direction.

Qur’an and Sunnah

أُحِلَّ لَكُمۡ لَيۡلَةَ ٱلصِّيَامِ ٱلرَّفَثُ إِلَىٰ نِسَآئِكُمۡۚ هُنَّ لِبَاسࣱ لَّكُمۡ وَأَنتُمۡ لِبَاسࣱ لَّهُنَّۗ عَلِمَ ٱللَّهُ أَنَّكُمۡ كُنتُمۡ تَخۡتَانُونَ أَنفُسَكُمۡ فَتَابَ عَلَيۡكُمۡ وَعَفَا عَنكُمۡۖ فَٱلۡـَٰٔنَ بَٰشِرُوهُنَّ وَٱبۡتَغُواْ مَا كَتَبَ ٱللَّهُ لَكُمۡۚ وَكُلُواْ وَٱشۡرَبُواْ حَتَّىٰ يَتَبَيَّنَ لَكُمُ ٱلۡخَيۡطُ ٱلۡأَبۡيَضُ مِنَ ٱلۡخَيۡطِ ٱلۡأَسۡوَدِ مِنَ ٱلۡفَجۡرِۖ ثُمَّ أَتِمُّواْ ٱلصِّيَامَ إِلَى ٱلَّيۡلِۚ وَلَا تُبَٰشِرُوهُنَّ وَأَنتُمۡ عَٰكِفُونَ فِي ٱلۡمَسَٰجِدِۗ تِلۡكَ حُدُودُ ٱللَّهِ فَلَا تَقۡرَبُوهَاۗ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ ءَايَٰتِهِۦ لِلنَّاسِ لَعَلَّهُمۡ يَتَّقُونَ

You [believers] are permitted to lie with your wives during the night of the fast: they are [close] as garments to you, as you are to them. God was aware that you were betraying yourselves, so He turned to you in mercy and pardoned you: now you can lie with them- seek what God has ordained for you- eat and drink until the white thread of dawn becomes distinct from the black. Then fast until nightfall. Do not lie with them during the nights of your devotional retreat in the mosques: these are the bounds set by God, so do not go near them. In this way God makes His messages clear to people, that they may guard themselves against doing wrong

Qur’an 2:187

وَمِنۡ ءَايَٰتِهِۦٓ أَنۡ خَلَقَ لَكُم مِّنۡ أَنفُسِكُمۡ أَزۡوَٰجࣰ ا لِّتَسۡكُنُوٓاْ إِلَيۡهَا وَجَعَلَ بَيۡنَكُم مَّوَدَّةࣰ وَرَحۡمَةًۚ إِنَّ فِي ذَٰلِكَ لَأٓيَٰتࣲ لِّقَوۡمࣲ يَتَفَكَّرُونَ

Another of His signs is that He created spouses from among yourselves for you to live with in tranquillity: He ordained love and kindness between you. There truly are signs in this for those who reflect

Qur’an 30:21

Translation: M.A.S. Abdel Haleem, The Qur'an, Oxford University Press, 2004.