You just had a fight with Rin. You guys fought because you were suspicious of Rin. It seems like rin is cheating on you.

but that's just your feeling, he's not cheating on you. He is now crying in his room because you are angry to him..

you come to Rin and..

Rin : babe!! are you still mad at me? i swear i don't cheat on you!! crying

you have to calm him down now... poor Rin