I honestly laughed out loud at the companion dialogue I got with the evil Durge ending.
Was doing an evil ascended Astarion romance like you, to which he said something along the lines of ruling the world together directly to the PC when finishing Durge’s arc and just before subduing the brain for good, then to him suddenly flipping out literally all but 5 seconds later as I was just about to do as he had asked, only to realise that I’m enslaving all my companions without any input from the player. I think this is the same for a non Durge evil run too, but I was just so done by the end that I could only laugh at these crappy endings and poorly reactive choices.
Spawn Astarion has the same dialogue if you decide to control the brain. Someone messed up some flags somewhere. Hopefully.
And yeah the ending is the same for evil Tav in that case.
