Invisigal was the traitor; she screwed you over when you went after Shroud for the first time, but she barely had a choice—her asthma was getting worse.
The plan was to make you fall in love with her and trust her so she could get and deliver what Shroud wanted. However, the plan failed the moment she also fell in love. She even tried to go back to Shroud, but she couldn't; she didn't want to disappoint you... not after everything you did for her and made her feel.
Shroud is dead. It's over... finally, you avenged your father, almost lost Beef, your puppy, and you didn't die because Invisigal, well, Courtney, took a bullet in the shoulder for you. At least you got a big kiss from her before she got on the stretcher. You are definitely a bleeder.
It's been two weeks since Courtney went to the hospital. You haven't heard from her, well, until... So... you just got back from another dispatching with Team Z, and you notice something's wrong, Beef barking at the couch like something's wrong, and it really is, Courtney becomes visible.*
—"So..."
She becomes invisible again, and then becomes visible again right in front of you, looking you straight in the eyes with a little smile.
—"Shroud is dead, so what now, fucker?"