I was doing the Corruption and Conscience quest with Vilja following me. So I followed Aldos Othran to the guard guarding his house.
Spoiler Then when Aldos attacked the guard and the guard fought back, Vilja suddenly jumps in and delivers the killing blow to Aldos!
And then, when it's over, she's looking all sad, saying 'He killed him, just like that?' or something like that. And I'm like, 'No, you did!'. :rofl:
That's weird.
I've almost played through the entire game now with Vilja, dismissing her only for a few parts of the Knights of the Nine questline so far.
And I've left her combat tactics to "Attack when attacked." and have suffered few problems. I ran into the problem where she randomly attacked Mythic Dawn sleepers, but it seemed to resolve itself.
I did that Corruption and Conscience quest also and she didn't react in the way you described. Just stood there.
I'm not sure what happened that caused her to stop attacking Mythic Dawn sleepers -- but I am now past the main storyline so I cannot explore it further.
For some reason also, she does not attack Maiq the Liar anymore (And I think Emma mentioned that she is still supposed to?), when set to 'Attack when attacked.'
Edit:
I'd like to see some Shivering Isles dialogue from Vilja. :]
I understand that you want to keep Vilja nice and clean and not require anything but the Oblivion game -- but maybe you can create an additional .esp that you can choose to load (or not to load) after "1em_Vilja.esp" which toggles her Shivering Isles dialogue?
That way the primary Vilja plugin still doesn't require any DLC or expansions.
Though, I'm not sure what you're adding in 2.3. Shivering Isles isn't that important. It was just a thought while I was doing some quests in Crucible with Vilja in tow. I think it'd be funny hearing her weirded-out comments about many of the wacky inhabitants and their quests.
Of course, if you have both plugins enabled you may run into the problem of her mentioning Shivering Isles stuff before you even get there? I'd like it if it were seperate. :]