It was Yuriko!
It had to be Yuriko! The one who told Kushina about Yukina had to be Yuriko!
And Yuriko must have told Kushina that I was back as well. When Kushina saw me, she had practically rushed at me without a word. She already knew I had returned. Otherwise, no matter how much she reflexively wanted to beat me up after seeing me "come back from the dead," she would have frozen for a moment first.
Someone had definitely told her beforehand that I was back.
As for Kushina's current situation, while Minato Namikaze and even the village higher-ups certainly would not publicize something like the Fourth Hokage's fiancée breaking up with him, she was originally the Nine-Tails Jinchuriki. The village had always tried to conceal her existence, and she did not have many friends. The only ones I knew of were Mikoto Uchiha and Yuriko.
Mikoto Uchiha probably had little contact with Kushina these days. It was not that their relationship had changed, but Hirohiko had injured so many Uchiha Clan elites. Kushina was, after all, Hirohiko's teacher, and as the clan head's wife, Mikoto Uchiha could not openly associate with Kushina. They were basically avoiding each other whenever possible.
It had nothing to do with their feelings. Circumstances had forced it upon them.
That left only Yuriko.
Moreover, Hyuga Yukyō was now under Kushina's secret protection, and he was injured. A severed arm and destroyed eye were not wounds just anyone could treat. In terms of both personal ties and ability, Yuriko was the only possibility.
And when I treated Hyuga Yukyō, his wounds had clearly split open before being treated again. The bloodstains on those bandages had been there for some time, though not too long. Yuriko had likely only just left when I went