Are we forgetting something? (Contains spoilers for Steven Universe Battle of Heart and Mind)
Blue looked hurt that Yellow had flat up tried to poof her. She stood up for Steven against Yellow and while they were fighting, I don't think she truly wanted to harm Yellow. And Yellow just straight up tried to poof her.
She looked lost, hurt and probably even slightly confused. Someone had pointed out that due to her depressed mourning for Pink after her “Shattering”, that she's the weak link in the Diamond Authority, and it turns out, she was. Steven got through to her when she had attacked him with her ball of depression (I'm going to call it that, since it's a ball and her powers are depression/emotions) and it seems that she might be thinking to meet with Yellow and White (as of now that White is out of her own head) to readdress their laws, as Yellow and White have had a cold slap of reality to see that what they had done for eons have all been useless, just useless and pathetic really. They weren't happy, so they continued. Sounds familiar? That's because they're flawed, deluding themselves to believe they are superior beings.
And look how Blue comforts Yellow after Yellow lets her façade just collapse.
Yellow had always been there for her, and now she's there for Yellow.
And they smile openly at each other.
I mean, we've seen slight smiles here and there during Season 5 from our Tyrannical Dork Mothers™, but this just puts frosting on the cake. It must have hurt Yellow when she realized she was hurting Blue, even though she made a valid point of Blue using her powers on Yellow (probably by accident) . I mean, look.
Even though she's attacking Blue after saying that she (Blue) had hurt a fellow Diamond (herself) straight up for pointing out that they're all hurting, that they hurt Pink for ages, that they hurt their Gems and that Blue had been hurting. Yellow is in pain.
She's in pain because she's hurting Blue.
And that was hurting her.
It was hurting so much that she closed her eyes as she attacked Blue.
And Blue is in physical pain as well as emotional.
The look of pain, the haunted look of someone who knows she had hurt someone she loves, and they had hurt her even more and she's lost. She doesn't know what to do. And Steven goes even further to ask Yellow if it looked perfect to her.
Blue's struggling to stand. She's barely off her side on the bridge. But she reaches out for Yellow. What made them both happy?
Their Pink, and each other.
And she's broken, Yellow is as broken emotionally as Blue. They're in pain. Yellow had always tried to keep her composure, whereas Blue was open about her pain.
And then it was Blue's turn to comfort her. And she did.
They're married, and no one can tell me otherwise. They're always there for each other, letting the other know they're there through small touches, like on the back, or shoulders, simple hand holding. Hugging.