Demi Lovato and Miley Cyrus are best friends. Niall Horan, member of world famous boy band, One Direction and boyfriend of Demi Lovato since 2009. Demi is the reason Niall went on X Factor in 2010. Liam Hemsworth, Miley Cyrus' boyfriend, is planning on proposing to her in a few months, but what happens when Miley gets jealous of Demi and Niall's relationship and Niall gets jealous of Liam and Miley's relationship? Will Niall, Demi, Miley and Liam find a way to sort it out without people getting hurt, or will friendships and relationships be tested and broken??