Well, it looks like a fun job of playing with cliches so far and I'm looking forward to the Dursleys vs. an angry Veela. Now, what's really going to get interesting is when Hermione, with her feelings for Harry, gets added into the mix. I'm certain there'll be a number of misunderstandings before things get hashed out; of course, the problems with communications should raise a number of warning signs in all concerned and I suspect Albus will -not- appreciate the consequences as Harry and his ladies will be nowhere as easy to control and manipulate as an isolated Harry and the Weasleys will be totally out of luck as manipulative tools to control the various individuals. It's going to get rather acrimonious at times as the youngest Weasleys find themselves frozen out and Molly finds that she's going to have to replan if she still wants OBHWF.
Author's response
Yep, there'll definitely be misunderstandings amongst the trio, and conflicts mentally for Harry as he struggles with feeligns for two girls.
Albus will definitely not be too pleased, especially in a few chapters, and neither will Molly (first she has Fleur "taking" Bill, and suddenly Gabrielle will be there "taking" Harry).