Every Day by David Levithan

EVERY DAY by David Levithan is a speculative YA that can be enjoyed by adults as much, or perhaps even more. It's an original idea. The writing style is entertaining. The book makes you think.

And, you know what? In a way, it's as sad as THE FAULT IN OUR STARS.

Here's the blurb:

Every day a different body. Every day a different life. Every day in love with the same girl.

There’s never any warning about where it will be or who it will be. A has made peace with that, even established guidelines by which to live: Never get too attached. Avoid being noticed. Do not interfere.

It’s all fine until the morning that A wakes up in the body of Justin and meets Justin’s girlfriend, Rhiannon. From that moment, the rules by which A has been living no longer apply. Because finally A has found someone he wants to be with—day in, day out, day after day.