Genesis 29:10

And it came to pass, when Jacob saw Rachel the daughter of Laban his mother’s brother, and the sheep of Laban his mother’s brother, that Jacob went near and rolled the stone from the well’s mouth, and watered the flock of Laban his mother’s brother. (Genesis 29:10 NKJV)

This is the first instance in the Bible where a man and woman fall in love. If we were to search the Bible for examples of pre-marital relationships, this would be a good place to start. Jacob instantly fell for Rachel here at the well. Being a man of the tents, he quickly shows off by watering the sheep and moving the rock that stopped up the well. They dated for 7 years before he married her and time flew by. However, their "dating" happened in her faher's house and only lasted as long as it took for him to pay the dowry for her. Dating leads to marriage. Otherwise, it's just practicing get divorced.