I am looking for a story I recently remembered where Harry was learning Parseltongue Magic, which apparently is more suited for healing than anything else. He also has a familiar or pet (I don’t know how they referred to each other, but most likely familiar) and I remember that at some point Harry used so much magic through his familiar that the familiar ended up burning Harry’s hand with scarring eventually.
I believe that Harry also had a boyfriend, however cannot remember too much on who it was. I believe it might have been Blaise Zabini as I like that pairing and think I went on a binge of those fanfictions around the time I read this story, however it has been a few years.
I can say that the story was rather substancial in content, I would say about 40+? But unfortunately, with it being so long ago that I read it, it could be on AFF, on FanfictionNet, or on AO3. Any thoughts or direction would be a massive help.