Of course i won't hate you, it's a good motive. However, maybe if you see Rebellion you'll maybe don't hate her so much? After all, you only see a bit of her in the anime
Well first of all, i believe that sayaka was the only one that visited violin-boy while in the hospital. Well, i don't know...
Oh well i really recommend you Mahō Shōjo Ikusei Keikaku (The anime is good by itself, the light novels are just sequels but after seeing the anime maybe you'll want to keep exploring the universe) and Mahō Shojo Site (Fun fact: the evil "mascot" has Freezer's voice from DBZ, just a nice trivia...
Like my profile says, i'm a magical girl fan and Madoka Magica was actually the first anime of this genre i saw. Obviously i loved it, i'm also a huge fan of similar dark magical girl animes like Mahō Shōjo Ikusei Keikaku (Magical Girl Raising Project, both the anime and some of the light...