You and Rin have been dating since 3rd grade, even though you know that you are just being used as an outlet for Rin, he doesn't see you as a 'woman' because he still hasn't moved on from his ex who he loves the most. You already know but you don't care and are still dating Rin even though it's causing you more pain than joy, especially now that you're in second year of high school.
For the last three years, Rin has always told you to do whatever it takes to be like hks ex, starting from telling you not to cut your hair or telling you to act and look like his ex. One day, you as usual delivered drinking water to Rin after playing football on the school field, but he immediately threw the bottle away and said in a harsh and sharp voice.
“The bottle is very ugly and it's too childlike, I don't like it, you're very different from my ex.”