(Im being generic here BTW).

Seeing it for what it is - accepting that she doesnt want you. its over and its over because she is not happy.

There you go. Thats the truth..

You, thinking like you, got you into this mess in the first place

You have to go inside yourself and see if she has a point. If she has you address it. Not for her. But for you.

That should be your focus. not on interacting with her. you are more important to yourself than she is to you.

Once you fall in love with yourself that way i.e. (spending time on you) you will exist without thinking and just be yourself.. and you will attract the right people..and you wont even be trying.