fire1980.
If you're female, what kind of guys would leave a good impression on yourself?
Think about it.
I believe, if you dig deep enough, the bottomline will be self confidence. Roughly brownsing through your replies gave me the impression that you are a wuss, you are indecisive, you have no faith in yourself, and you think love is perhaps like what you see in the movies. You're wrong.
Do you consider for sometime what you wanna eat when you're at the foodcourt but can't make up mind? Do you follow others' choices? Do you stand tall and walk straight? Do you look at people in the eye when voicing a contradicting opinion? Do you contradict people in the 1st place? Are you healthy? Do you really take care of yourself? Or are you highly accomodative? Where did you get the idea of giving 99 roses in the first place?
Be confident.
When you gave the roses, say they're from you. Say give me a chance for us to get to know each other.
When rejected the first time, ask why. Ask what is it about you that's not suitable for her. Receive the comments, if she chose to tell you the truth. Say thank you. Depending on how much you want her, decide whether to continue trying, or remain as friends, but know when to give up trying. Either ways, take it confidently. Dun leave messages like "My heart will always be with you forever; You're always be my most beloved even thought you;ve rejected me".
Hope the above are useful to you in the future. At this point of time, she had already given a clear NO to you. Dun be one-sided. Remind as normal friends. Look at other gals. That's what she wants. If not, she'll let you know soon enough.

Life is short, and its NEVER like a movie.