If a couple is completely satisfied with one another social media can't distance them.
In 1980's life had been less demanding. It has been easy to appreciate others for who they are. And if not they are not happy but they didn't have options which is completely not the case right now.
Connecting through social media is not satisfying itself but it gives the opportunity when taking the connection to the next level. and when you don't know what to say you can give yourself the opportunity to connect with other people until you find yourself completely satisfied. in all cases the first connection before social media had been weak so you had chosen it.