Well researched Mariah, now it's time to chill and trust your ortho.
Yes on a few occasions some orthodontists will not have done their profession proud, but this occurs in all areas of the real world, but we need to believe it's not happening to us, unless we have proof ... real proof.
Do remember to ask, as it's important for you to be involved in your treatment!
If this girl is really as silly as you write, then forget her and get on with living your own life. Every moment you waste thinking about her and what she (or her sister) might or might not be doing, is a minute you'll never have back. So instead spend your time in ways that you'll benefit from!
Enjoy!