So I've been rewatching the Twilight movies and certain scenes from them recently, and there's something that caught my eye while going through the post-battle scene in Eclipse.
We have Jane and the others show up, being like "blah blah blah, you guys did pretty well against all these newborns, how curious, blah blah" before Jane notices that one of the newborns is still alive, pointing out Bree.
Now, here's where it gets interesting for me. Because Jasper immediately moves and stands next to her protectively.
And yeah, sure, he's the newborn expert, he's in charge of all-things newborn vampires, so in that sense alone it makes sense for him to associate himself with her in that way, but I think it's a lot more than that; namely something that is always mentioned in passing in the movies, but never really pointed out as something significant (unlike Edward's telepathy and Alice's precognition, which are always mentioned first in terms of desirable acquisitions of power). I of course speak of his pathokinesis.
Bree is scared. At this point she has realized that she's a vampire and what that means for her life, but she has no idea if she will come out of this stand-off alive, so naturally, she is nervous.
And thanks to his pathokinesis, of course Jasper can feel that. So I think he's standing with her, almost protectively, not just because he's in charge of her, but because he can feel her fear and tries to comfort her with his presence (she with her vampire sight can of course see that his skin is decked out in scars, so that intimidating display alone probably tells her him being on her side is a good thing).
And then we come to Jane starting to torture Bree, and me having another observation.
When she falls to the ground and is screaming in agony, we can assume that Jasper can feel that, too (not the pain itself, but the mental anguish connected to it). And look how startled he seems when he sees her fall and looks from Bree to Jane.
This moment here makes me think that this is probably the first time he's ever seen Jane's power in person. Of course he knew about her, knew what her powers are. Alice probably filled him in in detail about the events in Volterra from New Moon, and I assume Carlisle has shared many stories over the years, too.
But hearing about something and actually seeing it first-hand are two very different things.
For someone like him, who can feel what other people are feeling, from their happiest moments to their most devastating mental pain, watching Jane not only use her powers, but relish in their effect without a second thought since she can't feel the pain she's causing, must be absolutely nauseating, for lack of a better word.
Jasper's experienced several lifetimes of anguish by proximity and is trying his best to make others feel better, while Jane deals blow after blow with her powers without any consequence. It must feel wrong and unfair to him.
Anyway, back to the point.
This is the face of a man who has fully realized what the antagonistic force is capable of, and he'll be sure to be prepared, next time they cross paths.
And lastly, something sad.
He turns his back on Bree, probably because he can't deal with watching her die on top of feeling her fear and pain. Neither he nor the other Cullens can stop Bree's death from happening without declaring war on the Volturi in the process (because I'm certain that's how Jane and the others would see their push-back).
So all he can do is turn away, and maybe make an effort to lessen her pain (it doesn't look like he did, but I think it would make sense if he used his powers to make death less frightening for Bree).
Anyway, rest in peace, Bree, you would have made a wonderful addition to the Cullen family. ♥