The more I think of Astarion's love-hate relationship with heroic characters, the more I think of this quote from The Last Unicorn:
And where were you twenty years ago? Ten years ago? Where were you when I was new? When I was one of those innocent young maidens you always come to? How dare you! How dare you come to me now, when I am this!
Bring Gale home to your mom and she'll be so happy. He'd be his charming self and your mom would be DELIGHTED. "Oh he's so handsome!" "You aspire to be a God? Finally, a man with ambition!"
You bring Astarion home you're cut out of the will immediately