tell me why

Some people seem to be so obsessed about being in a relationship/love or whatever.
Like some guys is always sweating some love quotes or some poop like that.
Or those kinda girls, "I'm waiting for my prince" $%#$^ shizz.
Why can't they just be content about being single?
What is so bad about being single?
For reals .
In my opinion, there is much more freedom.
You aren't tied down.
You can do whatever you please.