Well I figured that re-enect the robbery would be a trigger moment, but got to say it was dumb thing to do like that by the author...
Well Ayana forgot about Kuromine, but she remembered her feelings towards him, they just need to start over but watch out to not trigger her traumatic experience, although now he may comfort her and stop going into delusions.
Ayo, hold up... now Kana has feelings for Kuromine? Why author, why the fuck?!?