In order to understand this, you should probably read the first Host-Twilight comic: [link]
Also, you won't get this if you haven't read The Host and Eclipse, both by Stephenie Meyer.
This will be continued eventually, too. Oh, Wanda's life sux. She just can't cut a break.
Oh, and I think the only reason Bella is "helping" her is because Edward told her she should.
EDWARD: Now, Bella, while I am proud of you for distracting Victoria long enough for me to decapitate her, I feel like you should try to patch things up between you and Wanda. She's a lovely girl, and she deserves our compassion and understanding. BELLA: She's a worm.
And, seriously, those are the best dang wolves I have ever seen. Just try to beat that. JUST TRY IT.
I love Bella's headband in the movie, so I tried to put it in there. Yay.
Poor Leah and Wanda.