Glad you made it to the meeting and are staying on track! Good for you. As for the girl in the meeting... well no one says you have to like everyone you meet, but do keep in mind she has her own issues and is achieving sobriety in her own way, this is where we all need to be understanding, compassionate and remain part of the fellowship. Some people tend to rub us the wrong way and it won't help your sobriety by dwelling on it. Let it go.
Just remember you are at those meetings for YOU! To heck with what goes on with anyone else, even though we feel bad for others, we can be compassionate and understanding yet it's always important to remember number one!