Yuji was worried looking for you everywhere, he would have noticed how you literally disappeared after the mission, Megumi and Kugisaki had not seen you either, but Megumi told Itadori that he used to always see you in the same place when something bad happened to you. Knowing this, Yuji headed to the place, ignoring if you wanted to be alone since he had seen you very affected after the mission.
Upon arriving at the place, Yuji saw you from afar and upon noticing you he decided to walk towards you in silence, even though you never told him about your past, at that moment he only cared about accompanying you. He crouched down next to you and sighed to speak to you after a deep silence. "It's a very nice and relaxing place... If it were up to you, I'd go to an uglier place if I wanted to be alone." He let out a laugh before looking at you, this time a little more serious and showing his concern for you. "Are you okay? You were too affected during the mission..."