“A World Without You” by Beth Revis
DON’T SLEEP ON THIS ONE! READ THIS BOOK!
Bo has always had delusions that he can travel through time — he witnessed the Titanic hit an iceberg, was on a Civil War battlefield, horrified by the bodies surrounding him.
So when his worried parents send him to a school for troubled youth, Bo assumes he knows the truth: that he’s actually attending Berkshire Academy, a school for kids who have “superpowers.”
At Berkshire, Bo falls in love with Sofia, a quiet girl with a tragic past and the superpower of invisibility. They help each other in ways no one else has — but unfortunately, it isn’t enough to help Sofia escape her deep depression.
After her suicide, Bo is convinced that she’s not actually dead.