It's All In My Head by Kristen James

This was hands down one of the most interesting books I have ever read, and I mean that in the best possible way. The whole concept was so unique and I loved it! Waking up and hearing another person in your head would surely freak anybody out but Marcus can come a visit my brain any day. I loved the dynamic between Avery and Marcus. They had something so special. There were so many twists in this story and I seriously almost cried at the end. This book is really special and I'm so glad I read it.