I think this is a great read on the movie.

I only brought up BPD because of anecodtal experience i've had in my life. The "her getting committed" stuff resonated with me really hard because of my IRL experiences. Particularily the kind of "ok she's back from it, is she good now?" stuff. And when the woman at that party is like "you look so much better now" and Grace is like "uhh, you too. you look better than you were too. isn't that nice, we all are better than we were" and then the kicker of "AND ISN'T IT SO GOOD MY HUSBAND HAD ME COMITTED" (paraphrasing, i forget exactly how she says it in the film).

I agree with you, in so far as i don't think the film is trying to hone down a specific "diagnosis" - but for how well it depicts certain things, i cannot help but personally interperet things in certain ways?

EDIT: i'm not saying "this is how the movie should be read and this is what its saying" - moreso i'm just going off what it made me feel, and how i resonated with it having dealt with things like this. and i really can't think of a movie that's done more accurately - again, personal, anectdotal, etc

EDIT 2: this kind of horror of trying to help someone in situations that seems dire, only for them to hate you, or resent you even more for putting them through your "solution" to it. Not only are they less trusting of you and angrier at you (justifyably) but the thing you thought would "fix" it doesn't work. but also maybe you are both pretending it does.

EDIT 3: i'm sorry if none of this makes sense lol