Warning: spoiler about the ending with a specific companion
spoiler
Lae'zel
I mean, I did everything she said, I saved her comet crush, I saved the world, we had the top of the relationships, I was "the source of her joy", and then, just because I had to transform myself into a flying squid "she can't cross that line" !1One!! :D
In my headcanon, after the big brain, I did track down and exterminate all the Githyanki after she left >:|