Responsibility after marriage

Al-Ma'idah Chapter 5 Verse 6

This day all good things have been made lawful for you. And the food of the People of the Book is lawful for you, and your food is lawful for them. And lawful for you are chaste believing women and chaste women from among those who were given the Book before you, when you give them their dowries, contracting valid marriage and not committing fornication nor taking secret paramours. And whoever rejects the faith, his work has doubtless come to naught, and in the Hereafter he will be among the losers.