What is this???...love or friendship?

Ther eis this girl which i like her very much..we chat daily on fb......i think that she ha a crush on me too.......well so..when today she asked me what i was doing while we were on fb..i replied that i was talking to one friend...she replied to whom?..i said..why do u enquire like FBI officials everyday..she is very suspicious sort of girl..to this she said..cuz i m ur friend and have the right to know whom r u talking to..then she said that she wants a guy for a date...and havent been able to find one in her school...then when she was leaving..she said..I KNOW THAT U WILL MISS ME....what does this mean?....she thinks me as a best friend or something else????