Because I think too many people in this thread suffer from thinking that Quirrel is literally infallible in regards to anything he tries.

I have thought the same in conversations about other puzzles for that character, so I should heartily agree. The evidence shows no reason for him to want her to stay.

I update to believing that Quirrell tried and failed to drive Hermione away p>0.6. His groundhog day attack equipped him to expertly apply pressure to her but she still persevered, even barely, because she is heroic. (He was using reverse psychology to drive her toward Harry p<0.15. Something I do not understand was happening p>0.25.)

Thank you for the reality check.