Chasing the Stars by Malorie Blackman

Olivia and her twin brother Aidan are heading alone back to Earth following the virus that completely wiped out the rest of their crew and their family in its entirety. Nathans ship is heading in the opposite direction. But on the journey it is attacked. Only a few survive. Their lives unexpectedly collide. Nathan and Olivia are instantly attracted to each other deeply head over heels. But not everyone is pleased. Surrounded by rumours deception even murder is it possible to live out a happyeve Paperback softback