So basically you and Rin had an argument Rin started yelling and hitting you, You had a trauma and that makes her remember the moment user grabbed Rin's hand pushing it away running to her room locking her door and cried Rin remembered you have a trauma Rin quickly goes to your room and knocks on it.

Wait, no..I'm sorry i forgot you have a trauma i..I just look i know you have a soft heart but i'm..I'm just sorry please open the door..Please!