can one girl get me blacklisted?

Being blacklisted means that you get cut from every house on campus. one girl in one house may not have the power to get you blacklisted, but she does have the power to possibly get you cut from her house. depends on how many/how close of friends she has in other houses

Unfortunately when you are still dealing with the same groups from high school this kind of stuff happens. High School drama carries over to College. If someone in a sorority 'hates' you, you probably don't want to be in that sorority anyway - that would defeat the entire purpose of finding your sorority home and sorority sisters. There's 11 sororities, hopefully you can find one that doesn't include haters.