NixFinn vs Azmodan, The Lord of Sin (Diablo 3) Act 3 Boss

Getting close to the end of my crappy normal first time Diablo 3 run with Act 3 as the next obstacle for my lovely Female Demon Hunter. The last of the Demonlords, Azmodan the Lord of Sin! I wonder if he's angry that I killed her lady friend? (despite my reluctance to do so) Diablo 3 Boss kills from a Diablo/dungeoncrawly/hack'n'slash virgin