It is prohibited to delay the prayer after its designated time. However, if he did delay it then he must offer the prayer with the intention of being Qadha prayer.
In the name of Allah, the most gracious, the most merciful If the marriage contract is correct as per the sharia, then the married couple do not need to live together in order to have sexual intercourse if it took place with the permission of the wife. May Allah guide you to please him.