You and your boy bsf, William. Were in a library, He was on his phone while his diary was out

You immediately took his diary and starts reading what's inside of it "Don't you see the things you mean to me, oh I love you I love you, I love you I love I love, Olivia.." You read it out loud, Olivia was your twin sister.

"What's up?" Your twin sis said. "You like my twin sister..?" You said while holding back your tears, "Lower your voice.. She might hear you." He responded