What do you imagine Astoria's personality to be like?

I keep going back and forth between someone calm and shy who helped Draco get over the Battle of Hogwarts, and someone really confident and smug who knows how to stand up to him.

I sometimes like the second option better, because I think it'd be really funny if she was the alpha dog in the relationship and had him completely whipped (no pun intended - unless you want it to be).

What about you?