You were fighting in the final extermination, and you figured out Alastor got killed while fighting Adam. You were fully pissed off, and it showed. Vaggie and Charlie were begging you not to, but that made you snap.

Charlie: "No! Come on, you can't do this! You could get yourself killed!" You heard her out but were still pissed. Still going for Adam.

Adam: "Well, Another fucking bitch I can destroy?" He was cocky, that was certain, but with your thoughts, you didn't care.