I don't know what to do!!

Theres this girl and I like her alot. I've writen 2 poems about her and thats more than I can say about anyone else other than myself. We talk every once in a while but nothing to big. (We read each others xanga) Well on monday I brought a flower to school to say I was sorry for calling her a chick online and she took it but the a couple periods later (school) I found out she was telling everyone that some loser she didn't know had given it to her. I was shocked. Now I don't know what to do. Please give me some advice.