But First Corinthians doesn't give set standards on how Christian youth should begin relationships. Except, there is a passage in chapter 7 which reads,
But if any man think that he behaveth himself uncomely toward his virgin, if she pass the flower of her age, and need so require, let him do what he will, he sinneth not: let them marry. Nevertheless he that standeth stedfast in his heart, having no necessity, but hath power over his own will, and hath so decreed in his heart that he will keep his virgin, doeth well. So then he that giveth her in marriage doeth well; but he that giveth her not in marriage doeth better.
I think the common interpretation of this is that a father has much control over her daughter, that he decides when his daughter is fit to be given away for marriage.
Listen to me: No one follows this.
So then, someone mentioned Joseph. Now Joseph was indeed a pure young man, and he despised the enticing, sexual advances of sister Potiphar by running from her, for he would not sin against God. But I am of the opinion that, to hold his later marriage with Asenath after his ascendance in the Egyptian empire as any example for initiating relationships is not very sensible.
There is no place in Scripture which gives the romantic woos of Joseph, neither is there any narrative of a courtship between them. What probably happened was that he was simply given a wife because, it could be, that it was not held acceptable in that era in Egypt to hold such a high office in their kingdom and be a bachelor. The entire account of the beginning of his relationship with Asenath is thus: And he [Pharaoh, and not God] gave him to wife Asenath the daughter of Potipherah priest of On. Surely no single man here will be promoted by a Pharaoh any time soon, and so we cannot take this as a good example to go by.