Indigo Summer and her boyfriend, Marcus Carter, have stayed solid through plenty of drama. Now Marcus is a senior, and he's already received his acceptance letter from Harvard. Indigo knows how hard he's worked for this chance. But with his future looking so bright, Indigo suddenly has doubts about where she fits into his life—especially when Marcus meets a beautiful, brainy premed student during a campus visit. Indigo and Marcus have survived separation and temptation before. But this time, everything feels different, and Marcus needs to figure out where his heart lies. But once he's made up his mind, will Indigo still be waiting for him?