The trouble with referees is that they don’t care who wins. 
Referees are no different from players; they make mistakes and have bad days. All you can hope is that they get the big decisions right.
People don’t understand that inside that uniform, there is a human being that makes mistakes.
It’s incredibly lonely. 
You speak to players, and they have the comfort of their teammates. And even though we have assistant referees and game official groups, it is still a very lonely and isolating place when you are out there.