she is afraid of getting hurt...of getting her hopes up and then going broken and torn apart (not intentionally on your part but stil) she's scared outta her wits. period. she loves you and she thinks you love her but she sees it as too good to be true. so therefore you have to begin the long journey ahead if you think she worth it.. if you truly do love her. Show her. prove it. time and time again. no matter how hard it gets or how long it takes.. just tell yourself she worth it and in the end if you succeed then you and her will be together forever... you two are very lucky.