Harry is betrayed/abused/beaten/shunned by Ron or Gryffindor in general
I just finished reading Blackbird by NestingHedwig. I know I've read many other stories where Harry is betrayed/abused/beaten/shunned by Ron, or most of the boys in his dorm (except Neville), or sometimes all of Gryffindor. I just can't remember any of the titles. I know in one Professor McGonagall goes ballistic when she finds out. In others, I think Professor McGonagall is complicit in the betrayal. Usually, Snape, Draco, and/or Slytherin supports Harry. Please, any recommendations for stories with this theme would be appreciated.