Shoot the man in the head with your crossbow
From Create Your Own Story
It's hard to tell, but it looks like the man is the one who is infected. You shoot him in the head with your crossbow.
As the man slumps dead, the woman looks up...with dead, yellow zombie eyes. Shit.
Before you can reload your crossbow or draw your pistol, she leaps onto you, ripping out your throat with her razor-sharp teeth.
THE END