AAARRRGHH. It was set to veteran mode. I am supposed to have it set to story mode. I got Aries down now (it was easy in story mode). Sorry for wasting everyones' time. My bad.

Thanks to everyone for your help. But no matter what I do Aries keep going after Vette and ignores me (he punches her to death). Perhaps Bioware changed the fight since you guys did it?

Hello, I just returned to SWTOR after a couple of years off. I am really enjoying the Knights of the Eternal Throne story. But now I am stuck on this mission to defeat Aries. I am a Jedi Sentinal. Aries keep killing Vette. How do I get aggro so Aries will attack me? I read that Bioware changed the fight to make it harder by making Aries go after Vette. Any help will be appreciated.