My girlfriend seems to be getting bored of me...?

Well, We will have been going out jan 3 08. She is a very emotional girl. She has talked about her and I breaking up or taking a break from eachother. Taking a break is something I dont like just because i believe in we are together or we arnt. She dosnt like PDA in front oh her friends. Latley she has also been talking about how me andher are growing apart cause we never have anything to talk about any more. I feel like theres something telling me to leave but then again its like that song. Pulling me back. Everytime i think about ending it something keeps pulling me back. I feel like we are meant to be. Well anyways any advice anyone?