i think he'd have killed her cos in the past, he killed other people whose smell he couldn't resist. after all, he has rosalie to love, so it's not as if he would've fallen for her like edward did
oh come on! Emmett is MUCH smarter and stronger than that! He wouldn't just kill her like that in public. Hell go somewhere where no one can see them and then kill her there so no one would find out their secret :P
