Is it really too late, did I lose her for good?

My girlfriend of 5 years broke up with me a couple months ago. I tried doing the right thing. I went to the airport, tried to stop her from catching the plane to another state. She replied with this:

''No, I don't want anything from you. Why now? Why not before when I was waiting all this time?''

She said no to me, still left and got into the plane. I couldn't get her back. I've never gone after someone like that. Is it really too late? Did I lose her for good? Or is there some hope?

Is it really too late, did I lose her for good?
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