The Durge is not a trophy oder a bloodbag or Tav ... he killed Tav. I really hope that they think of something like this for new evil endings.
Well it's a shame that a romance with Tav can be interpreted that way. Because it never was. Otherwise it's not a romance. Astarion actually looks down on mortals from above. Tav doesn't. So even with mortal Tav, he shares decadence and pleasures. Probably Astarion on the path of ascension views Tav - them together forever as an unbreakable union, from above all.
