Sexual purity is a topic that is not discussed as often in today's church.However, if you are doing a study on purity, you will find the Bible does have a good deal to say on premarital sex.
Bible studies for couples may be held at church with a group, online or privately between the two of you.
Dating is not a term ever mentioned in the Bible; however, the Bible does have a good deal to say about relationships before marriage.
Sexual purity is part of the Ten Commandments, listed in Exodus.
There are also calls to purity in Matthew 5, as well as 1 John 2.
A study of 1 Corinthians 7 will give you a good view of how the Apostle Paul felt the single years should be spent.