Remember when we met up with his spawn siblings in the Flophouse? Remember his spawn siblings' reaction to their brother burning in the sun? "God's, No brother!! Stop!!" "What's happened to you, Astarion?!" They were panicked and begging Astarion to let him go because a vampire burning in the sun is SUPPOSED TO BE A BIG DEAL. His freaking sister had a harsher reaction to their nothing brother burning up but your companions and you and his love don't seem concerned at all about it when it happens to Astarion.
What am I missing here? Who at Larian thought this was a good idea? I have 0 clue why this was supposed to be funny. We did exactly what you wanted, we got to know him. And in getting to know him, you punish us for it.
Part of me thinks that the writers got too caught up in trying to force in their bad erotica (or the erotica that would play best to the horny gamers). There's a lot of bizarre moments in the companion storylines, and interactions, that just seem really out of pocket and forced, while actually natural relationship moments are completely ignored.
And Astarion's good ending just seems like the writers actively spiting you for not going down their toxic badboy boytoy vampire domination route, or whatever.