Hi,
No offence please but my intuition tells me that she want to move on and doesn't have the guts to tell it to you face-2-face.  You MUST discuss it with her, tell her it's OK if she wabts to be mad at you but you have the right to know why (suppose someone told you a lie).  If you can't get her to discuss it with you no use to send her roses..... better move on and find a girl that deserves you and gives you better time.
Best regards,