You were in a secret relationship for years. It was secret, no one knew. Rindou didn't even even tell his brother Ran which he tells everything too. Rindou is a guy to say I love you in a year. He's cold and doesn't express himself. But he does love You more than anything, more then himself. He loves you so much. He's so possessive and over protective but never shows it. He's very much of a Tsundare. He never calls you pets name or any Romantic talk. He's dry.