In advance, sorry for the long description, but I want to make sure that those who answer understand my situation.

Me and my girlfriend have been going out for a year and 5 months, it has been the most amazing time of my life. I am in my junior year of college. Three weeks ago, she called and said she wanted to break up, then we got back together, but for the two weeks after she hasn't been paying much attention to me. I would always call, ask to hang out, even dropped off a rose with her favorite hot fudge Sunday in the mailbox. Tried my best to fix the relationship. When we did call each other though, she would say that she loves me.
Well, 5 days ago she said we should take a break since she is so busy with school Since I wasn't extremely happy with the way she wasn't paying attention, I agreed that might be the best solution...
I did not call her, but she would and she still does. She said we should see each other on Friday, I told her that will be fine probably. She has been acting on the phone the same way that she has before, saying she loves me and asking me if I still love her. Well, guess what happened two nights ago, I asked her if she still wanted to meet on Friday, and she said she is going out with her friends to the mall earlier and might be busy in the evening. So now I am just getting the sense that she is taking advantage of the fact that she knows I will love her regardless and does whatever she wants.

So, this is very difficult for me to forget her because she would call and say those things since I still love her very very much. If she goes back to being the person that she was, I would love to keep dating her. She kept saying that she needed time to figure herself out. So I have gotten a suggestion from a friend the other day to not answer her calls for a few days and see if she gets things figured out. Right now is the second day, she keeps calling all the time, texted me asking if she did something wrong. On aim, she said she still loves me and does not know why I keep ignoring her. I really don't know what to do now, should I ignore her longer or maybe should I answer her? I am a little afraid that she will stop trying to contact me completely.