Xichen pulls out two mugs so he could start on the tea. Things were a bit tense between him and his brother. Honestly? He still doesn't see how his baby brother wasn't upset with him. Whether it be for not protecting him better or during the whole thing with him being in seclusion. He should have been able to protect his brother better. Wangji hadn't been able to be protected nor had Nie Mingjue. Even Jin Guangyao hadn't been protected.
"It was not merely following Jin Guangshan, Wangji. There was no one but Master Wei and you who believed they were innocent. I did not even believe it."