Always keep the Lord as the center of all you do as a couple and remember to pray together and the Lord will strengthen your loving relationship.  Each day offer at least one sincere compliment to the other person.  This will help you grow in love and strengthen your bond as a couple.  It is words as well as actions that will help you grow in your relationship and will also bring you closer to the Lord.
Worshipping together will definitely bring you closer to your ultimate goals.  Do this on a regular basis, such as every Sunday.  Attending Bible studies will also help you grow in the Lord.       
Share your experiences with each other and create new memories together.  The more you do things with each other the closer you will grow as a couple.  Fellowship with others will also help you.