Reloaded my last savegame of my first playthrough with the final conversation with Karlach and watched the "extended epilogue" yesterday. I was somehow shocked and irritated how out of character Karlach acted.

For me, it feels more of an ending if you only befriended and still want to help her. Or maybe Wyll is by her side. But I'm in a romance with her and I would expect some nicer words, maybe a "thank you, soldier/darling".
I still have her monologue after Gortasch in my head ("The loneliness, oh the f******* loneliness...") and that was the absolut point of no return for me to let her alone in any way.

But this Karlach feels strange for me. Especially with the ciggars out of nowhere. It is maybe a minor thing, but for me, it feels extremely odd because she never mentions some habit like that.

I appreciate the work Larian is investing but I still have hopes for a happy ending for Karlach and my Tav.