Patch 7 here I wanted to add I didn't see this mentioned anywhere but there is a lot of replies here but Halfling's first Illithid Dream ends early. This happened to me rarely and after a couple times I was finally able to piece together that it was on my halfling characters. Regardless of the choice you make in the first dialogue option the dream will end there and if you go speak to Gale all 3 option responses will be to lie because you never got the option to give in, remain silent, or relent. It just ends early. If you speak to Lae'zel it will be treated as if you gave in.