Julie Baby!
(sorry, I just had to do that)
Transferring: write down the pros and cons of each school and then make your decision. You might love the social life at your friend's school but the academics for your major might not be there. Talk it over with your parents.
Infraction: I don't think it would be an infraction until you actually applied and were accepted. Just because you're thinking of transferring - I mean, how can they be held accountable for what goes on it your head?
GREAT BIG KUDOS to your friend for looking out for her sorority and for you!!