I was led on, help

Well, she led me on. (first time told me that she likes me and wants to be with me but doesn't want anything with anyone, yet continued to **** another guy and almost got into a relationship with him) I was her very good friend, and she basically told me that i am the best guy she has ever met. We did ended up together a few times, and she did want a relationship with me in the beginning, but i didn't want it then.

After talking for a long time, and where in the beginning she was in love with me, she was always the one to initiate contact, but was leading me on twice, after i forgave her the first time, she did it again. (yes, i know, don't say anything about that i am an idiot) and is currently getting into a relationship with a guy. She always rejected meetups, even though we were **** buddies. In the last few weeks she told me: I love you, you are the best thing that happened to me, i am falling back in love with you, i would kill myself if you weren't here. So she lied about all that and told me that she was mistaken about falling in love and that she is really sorry. (I found out about that from her best friend, not her, she would have kept that a secret and never tell me, and probably continue to give me false hope.)

I told her that from now on we will not talk anymore, and if she ever wants something more with me to call me, and that i don't want to be her friend. So currently i am ignoring her. We go to college together and i am always ignoring her even there, like she doesn't exist. 2 days passed and today she sent me a message saying: I miss you , to which i responded: I am doing this for myself, you have played with me for far too long and ended the conversation there.

How should i go on about her from now on? I know she cares about me as a person (i even found out from her best friend that she really cried that day), and that it is possible for her to fall back in love with me, but she didn't give me any chance. I am thinking of ignoring her, is that a good decision?