Chris Brown: You know what I'm thinkin' You know that it's you, But some things need perfection, Unlike you, Chris Brown and Rihanna: So why am I so in love? Your the best thing in my life and always will be Rihanna: I'm so glad your mine, You mean the world to me, Chris Brown: Your like a summers day, Both: I asked for your love, You gave it to me, I needed your trust, The same as can be, Rihanna: I thought I would lose you, But I knew I was wrong, Chris brown: So why did it have to happen, When you sing this song, Both: I know my mistakes, So light as a dove, I learn from them all, Why am I so in love, Rihanna: 'Coz I need to know, What's in my heart, Chris Brown: Like a love, In my love chart, Chorus Both: I asked for your love, You gave it to me, I needed your trust, The same as can be, Repeat chorus Both: My love is strong, Why am I so in love?