Do you love this girl back? If so then it shouldnt be a problem that you are both girls. But if ya dont love her back then tell she will understand and surely you can more on from it
You tell her that you love her just not like 'that'
You should consult the school counselor.
They might mean it as a friend or they are lesbian just say back off im your friend and work it out
Make sure the girl isnt gay herself and if she is stay away from her because thats just nasty...If she isnt then tell her that makes you feel uncomfortable
How does she love you? Like a friend or someting more? Also, it depends if you run that way.. If you dont then gently tell her that u dont feel the same way.