Question from both me and the fiancée as we strongly believe that we can be both lovers and best friends but we don't know how to describe it too much or put it into words.
My husband and I have been married and have been best friends longer than most of you have been alive.
For the religious, marriage is a conjoining or unification of two souls into one nuclear family unit, i.e. what God has joined together let no man put asunder, i.e. separate. In a good marriage, religious or not, it means building a strong family, sharing resources, coparenting children and raising them to be independent, self-sufficient, responsible happy adults. It means being an asset to each other, our neighborhood, our community, our state, nation, and world. The strongest communities, strongest nations support, affirm, and promote the traditional family. In no place that the traditional family is not the most common component of the community will there be as much civility, more prosperity, more options, choices, opportunity, less crime. more stability.
To be best friends is to love each other unconditionally--that does not mean there will not be disagreements, disappointments, bad decisions, even a few fights, but through it all love wins out. You want the very best for each other, encourage each other, help each other, find ways to compromise, enjoy being together and share a lot of common interests even though both will occasionally have their own personal things they enjoy. (I will never enjoy watching Godfather movies or "Oh Brother Where Art Thou" like he does, and he'll never enjoy my disaster movies like I do.) You have each others' backs. You look to each other as the first person you want to share something with or experience with you and when you can't do that you have a feeling something important is missing.