There are dual pros and cons on this subject. We will start with the con side first:
"Being married to your best friend voids no room for separate identity."
Within a best friendship two people tend to share every moment, every secret, every thought with one another. This would involve doing activities with each other only. If you and best friend are so close that you have no room for new friendships forming, you are doing yourself a disservice. The benefit of a best friend is that you feel comfortable in yourself first therefore aiding you to seek out any friendship with others without the significant other becoming jealous.
On the flip side, the pro argument of being best friends with significant other initially is the key point in deciphering whether or not this person would make a lifetime mate. The close communication that you have with one another helps to let one know what the other one is feeling, what their needs are from each other as well as giving one another space for their own dreams.
Any two people in a relationship are going to argue from time to time, but in a best friend situation the arguments are usually rare and easier to mend. This is because the two friends effort to resolve the argument with the objective of cultivating their companion ability to improve and grow. They do not try to "win," but rather aim to grasp the other person's side of things.
I watched my own parents' relationship and love for each other always wanting to emulate that. For 50 years they would playfully tease each other which was never about whom was right or who was wrong, but rather rekindling that friendship that made their love endure tough years together as well as celebrating together.
Their love and friendship defined the path of what I have always wanted in a solid relationship. Without communication, honesty, trust and respect there is no friendship. No friendship leads to no solidified union.
