1- her sacrifice at the end of the dark phoenix saga its what made me idolize her. It showed that jean is pure love but also serious, it was horrible and beautiful at the same time
2- Kicking Creed's ass ( i like Creed but it showed than she can kick ass)
3- there was a scene in x-factor i think? Were scott and logan were fighting for jean and she put both of them in their place. I like both but this scene showed that she is nobody's property.