Dating is libertarian in relatively free societies, people date whoever they want as long as they want to date them too and they don't date people they don't want to.
Friendships are libertarian.
We get to choose what kind of clothes we want to wear (although we do have to wear clothes..)
We get to choose what food we want to eat for the most part. The food industry isn't entirely libertarian, but ultimately we have a variety of food we can choose from.
A lot of life is libertarian and it works great and people are pretty happy with it. The question is why don't we make more life libertarian. Corruption in politics is mostly what takes away the other libertarian elements in life, such as earning money.