The argument of whether Astarion is happier as a spawn or as the Vampire Ascendant is something that could de-rail this thread, so be careful. Acting like AA is his happiest version is going to bring that kind of argument. I believe he's happier when he stays a spawn, but I am still here to argue for AA fans because I can see the appeal of an evil character being on the same page as AA which means they are in harmony and AA treats them well. He treats them well all the way through the epilogue and the epilogue party. The only thing that changes this is the patch 6 kisses, which were an insult to AA fans. I don't understand why Larian wanted to disappoint both AA and spawn fans by giving one group some kisses that don't align with their romance with AA, and the other fan group was given a re-used kiss from the graveyard scene and nothing else.