Ok I've arrived to the S06 CS in my rewatch. And, I've got thoughts (I'm in pain)
And actually I'm in pain for Seigfried most of all. Like yes, we can all agree he's insufferable and takes Audrey for granted and all that but. Hear me out.
(I'm sure nothing I'm gonna say here hasn't been said before but I like analysing stuff so there you have it)
When he says to Dorothy that "some things have changed, perhaps not things one can easily see". Yes he's talking about the war. But he's talking about himself too. He knows his heart has changed. He knows he's in love with Audrey, he's known that for quite some time now (imo). And it has been painful because he's stopped himself from acting on it (for reasons the unpacking of which would require another post, but also: because he does fear it's unrequited).
And Mrs. Stokes saying what she says, and both her and Audrey pushing Dorothy on him, and especially Dorothy relying to him that Audrey said he has a good heart... It spurs him into action.
Except, he's a disaster™ and he does a whole lot of poetic talk about souls being slipt into two and all, and then chickens out. He leaves it open, like he's still searching for this mythical other half, when in reality what he's saying is that, he's found her. It's her, it's Audrey.
And problem is she's not on the same wavelength here, maybe for the first time ever she's not a few steps ahead of him, but rather a few steps behind (which is not something he could ever suspect her to be, with their track record). I don't believe she gets that he's talking about her. I don't believe that consciously she even lets herself hope that he might be. And so she does what she always does, because she cares so much, because helping is what she does best. She steers him towards what seems to be the right, sensible direction.
And he takes that as a rejection. As if it were her saying "you'll not find that other half here - you'll not find her with me".
And then, like, one second later, Mrs. Stokes telephones saying the metaphor for his heart goat has worsened, got too sick on poetical notions laurel and he's got to silence his own heart?? humanely put her down. And well.
Not to mention Mrs. Stokes fueling his already overwhelming fear of being left "all alone in that big house".
Like yikes. Merry bloody Christmas to him.