sadly this didn't happened at all,as yuu time leaped back and he eventually forgot everything about the past,so that means only us viewers know about this,too bad
1.) She's mocking how unsure and stupid-looking Yu seems at the moment. or (fanon); 2.) She's kind of upset/disappointed that Yu's supposedly declining right from the bat when Tomori wants/expects him to accept easily so that they'd go together. 3.) It could be an animation error but the other two options are more acceptable. Edit: Looking back now, I think it could be number 2 because Tomori would've wanted to know more about Yu's ability since the squad has suspected him since the very beginning ¯\_(ツ)_/¯
(spoiler alert) he went to the concert with her, triggered memories, and lead to do something that should've not been done because he gained another special ability if he didn't go to the concert, he would still live in the present and stay sane also not forgetting his precious memories with his friends, even when he lose his little sister. Of course it's good that he saved the adolescents for having a not perfect special ability, but in the other hand, he's losing himself. Quite sad with the ending, but understandable. Also at least his sister was saved.
@@ashifani20 I mean he didnt actually gain another special ability, he already had it . He just didnt know about it. If you ask me he was bound to find out sooner or later. But I get your point that there are some memories he probably didnt want to remember.
Sad part of this scene (spoilers): The scene happened after Ayumi's death, Tomori planned this too cheer up Yuu... Since he time traveled later to save his sister, none of this is remembered by anyone except Yuu and he too lost all his memories after stealing abilities from all over the world...