Leads seem non-assured? Sissy too stable-acting/looking
These leads didn't click for me, I don't know what it is that made it them seem detached. Chemistry? These leads had the material to win Oscars.
I realize Jessie is not emotionally-wrecked 24/7 and has resigned herself to suicide (therefore, at peace) at this point, but I think we needed to be able to relate to her better, to see the persona of mental-illness, if she was that. You don't always need to spoon-feed an audience, but in this case, more would be more if some of her neurosis/ inner-turmoil slipped out. Call it "controlled hysteria". Especially since Sissy has that "look" of being put-together.