You can't have courage without fear.
Sure you can. There are many emotions requiring courage that do not involve fear. It depends on ones definition of fear.
For instance, i need courage to do a weekend dinner service without my head chef, but i have no fear over it, i am simply concerned over how my service is received. I don't have a fear over it' reception, it is what it is, but i still need the courage to say ok, i'll do it. If it were a case of "if things go wrong you're fired" then i might feel fear, but it's not, yet i still need the courage to say yes anyway.
Or you could say there is a difference between apprehension, or fear, or fright.
My gf would be thrilled

Group fun!