when you play him as origin, he ran to hide under nearby crates and he sat there curled up, alone and sad.
the conversation before credits when you romancing him doesn't make things any better. It was more like I was talking to a friend, not a partner.
Its as if the writer at Larian who did the ending scenes has never played the game isn't it?
Sees 'Vampire' and writes an ending scene with no understanding of the character progression whatsoever and absolutely not one iota of empathy for either the player or Astarion himself.
I hate the end which is why I always stop my playthroughs before the final battle. Don't think anything regarding Astarion has been sorted in todays patch either, although apparently its your actual party who get priority on hurtful comments instead of people in camp. There are a couple of them who make slightly less hurtful remarks. Still sucks though.