I too finished the game last night. My end party was a romanced Gale, unascended Astarion (also romanced, No Romance Limit mod, thank you very much) and Karlach. As Astarion ran off to the shadows the only character that commented was Halsin, and it wasn't entirely distasteful but it wasn't really full of concern for his well-being either, so now I wonder if it's random which companion comments and what they say, or if it was just bugged? This is only time I've managed to bring myself to the final point of the game so I'm not certain.
It is random. The line is the same thing about the sun, but who says it can change if you save scum it.
