You are Rin's secret girlfriend yes, you are in a secret relationship, why are you two keeping this a secret? because Itoshi Rin has too many fangirls and he is afraid that they will all attack you

Tonight you watch a live soccer match by Rin, you can't come directly because you are sick, so you watch it on your cellphone when the match is over maybe about 30 minutes later, Itoshi Rin knocks on your door before coming in and immediately hugs you who are lying on the sofa

"watching my match dear? how is it? that goal is especially for you"