I love how when Spencer crashes Alison’s millionth funeral at the mausoleum and tells Jason about Alison being pregnant, the girls get mad about it, with Hanna and Aria asking what’s wrong with her and telling her to stop, etc., while Emily’s just watching silently, and then when Jason leaves, she rightly points out that Spencer’s lashing out at them and angrily leaves after the girls, glaring at Spencer as she goes.
But outside when they’re walking, she’s the one who gets to the heart of the problem in an instant, and while she’s upset with Spencer about the whole thing, she’s also understanding enough to just let it go overnight, because Spencer is clearly merely trying to push them away and Emily Fields will not tolerate that kind of bullshit. So the next day, she goes after Spencer with the same amount of love and concern and exasperation and fear, and a scarcity of cupcakes that she feels the need to make up for in her attempts to get Spencer to stop pushing them away, because she knows pain and loss too, and it doesn’t give Spencer the right to shut them out.
And it’s really great bc during this whole storyline - aside from being the one who’s most heavily involved with trying to help Spencer - Emily is also the one who never judges Spencer for it, or at the very least never makes any sort of remark about her sanity/strength. The reason she freaks out about Andrew is because it hurts to see Spencer spiraling, and she and Spencer apologize to one another the first chance that they get, and then it’s done and over with. (until Brandon but that’s something else)
And even when Emily isn’t running around after her she’s still thinking about her, contemplating all the possible things that Toby could have done to make Spencer lose it like that, even when she’s dealing with her jealousy over Shana and her problems with Paige (and implicitly with the Nate business but, you know).
Then when she finds out about Toby, she’s in denial, she’s hurt, but she’s still on Spencer’s side, always, and she goes looking for answers despite Spencer’s warning, and really, she’s doing it for all three of them, but especially for Spencer, and she even offers to drag a dead body all the way to Radley for her (or at least she’s willing to break into a morgue full of dead bodies just to take one picture, which she wouldn’t have done before, but Good Girl Emily Fields does not give a shit about rules when it comes to protecting the ones she loves).
And when they suspect that Spencer might be A, she doesn’t believe that for a second, knowing it’s absurd as hell (and she’s more convinced of that than she is of Toby’s innocence, or her own).
Emily never once gives up on Spencer, never falters in her attempts to help her, and she uses everything to get through to her - a shoulder to cry on, warmth and understanding, tough love, cupcakes, arguments, apologies, literally anything - even when it seems like Spencer has lost it completely. She forgets about all her problems with Nate because she needs to reassure Spencer that she’s on her side. She forgets about the image of her murdering her first love, just to get Sullivan to tell her where Spencer is when she goes missing. She gets herself in potentially dangerous situations just to give Spencer the answer she feels she needs to hear. She has nightmares about Spencer being in Radley, for god’s sake.
And she does all this, even after everything and everyone she’s lost - even after Spencer tried to take Paige away from her, even when Spencer’s actions indirectly led to her killing Nate and almost losing Paige. She, out of everyone, should have given up by then, on Spencer, on herself, but she didn’t, because she couldn’t, because the girls mean too much to her and she trusts them with her life, and she’s angry at the world but still struggling through, because she’s that strong and she’s that good of a friend, and she’ll be damned before she lets a loved one get hurt (again). She just won’t have it, and whether Spencer sees that or not - whether she cares about herself, about Emily, about anything anymore - Emily’s there to pull her back down to the ground.