Written In This Diary Are The Feelings That I Can't Change - Larry Stylinson

Harry is hopelessly in love with his best friend Louis Tomlinson. After a year of mustering up courage to confess his love to Louis, Harry's plans are cruelly shattered when Louis' girlfriend comes into picture. However, this time she isn't a beard - she's a real one. Harry is hurt. Louis keeps away from the band and everyone misses Louis. However, no one notices how upset Harry is until Niall stumbles upon Harry's diary and then things change...

Mentions of cutting and depression.