Thank you for the review and thank you for enjoying the story! As you can see, the setting in this story is mostly cannon, so when I started to fantasise how a reconciliation between Snape and Harry would realistically take place, I thought that making Harry more studious was an important requisite, because that was in my mind a way for Snape and Harry to find common ground and a way for Snape to - finally - start respecting Harry. I also thought that it would make sense that getting rid of Voldemort’s horcrux would affect Harry in some way - not his true personality, no, but in this case his ability to concentrate. Then I also think that in real life people often change a lot in their late teens - the childhood tastes and choices mature and an irresponsible youth might suddenly become studious… Thanks for appreciating :-)