I have a question about this girl and i please help!!!!!?

okay i met this girl long time ago but i asked her number and she refused it so i met her through friends then i fianlly got the num and we started haning out for a week then i asked her out then we've been hanging out almost 4 weeks straight we seen each other everyday and yesturday she was crying saying the love for me is going away and i'm her first boyfriend is it because shes not use to it or she needs some time and space??? and kept hugging me and kissing my cheeks and stuff whats going on?!?!