After the final battle, Harry transformed from a savior to a double savior. In addition to the unparalleled glory in the wizarding world and the admiration of nearly 100% female wizards, he still lacked something...
After breaking up with Ginny, she actually fell in love with her mortal enemy Draco? Impossible, Harry would never admit it.
After the war, Malfoy entered his heart more easily than anyone else, and the savior began to wonder if post-traumatic stress disorder had distorted his view of relationships and even his sexual orientation...