Early Beatles Era- John has known Paul as his best bud for a while now, and cared about him deeply; but one night made him realize he was feeling something new.
Being George Harrison's best/band mate wasn't as easy as it used to be. Paul McCartney is now torn between his loyalty to George but his attraction towards no one else but his sister.
Being George Harrison's sister wasn't as easy as it used to be. Brona Harrison was sick of her dead-end job and not being able to do anything in her own right as the label, "George Harrison's Sister", haunted her.
Hearts and heads want very different things.