The Dream Reality by Martin Flux

When the unknown girl he woke up next to turns out to be wanted by the authorities, Patrick has to choose between reporting her, risking his own violent history coming to light, and helping her, thus putting their two lives in even greater danger. Before he can make his decision, the reality starts bleeding into dreams, lines separating the past from the future become blurred, and he no longer knows if there is anyone in the world he should trust … including himself.