When Christians start dating, they begin to draw closer and closer to each other. This is the natural course of events as designed by God. It is meant for the purpose of long, satisfying marital intimacy that grows in oneness until the marriage covenant is broken by death or Christ's return.
But if you return to the right trajectory, you will again begin to grow closer to each other and in individual godliness as you go about things God's way until coming together in oneness in marriage. After that, you grow in oneness side-by-side and emotionally, spiritually, relationally and physically.