She’s going to think and believe whatever she wants to.
Don't fall for that nonsense...
She is going to think and believe what her FEELINGS lead her on. She will follow what her FEELINGS are telling her...
The key is for her feelings to change. If her feelings would change to not feeling like she could live without you, then she would be justifying why she WANTS to be with you and how it could work and why it would work.. etc. etc..
Her feelings are telling you she doesn't FEEL the right things for you. Thus she now believes the thoughts she is thinking because she doesn't feel the things you want her to feel...
That is why LETTING GO and agreeing with what she "thinks she wants" works the best.. Of course she has guilt. Her guilt now is "she doesn't want to hurt you". Her feelings are that she doesn't feel right about you.
When YOU let her go and agree with what she wants, here is what usually happens..
First a sense of relief. Slowly she will test you to see if you really will let her go. Once you convince her that you will, THEN her feelings change because her thoughts change...
Her guilt then starts saying things like this... "Now that I have what I want, DO I really want THIS? "Am I making a mistake?" What if I change my mind and he doesn't want ME back? "He did try, maybe I should have thought this out more." "I thought this is what I wanted, but now I am not so sure" "Why did I do this to him"
It is the same thing that happened to you when SHE let go and dropped the bomb. Don't YOU remember the panic, the questioning, the sudden decision to make any and all changes to keep her. Why? Why was it only after she let go? (who cares why, just know that it works on all of us)
That won't and can't happen UNTIL you release her and let her go. It puts the relationship on the line, but I have seen this work very very well many many times. The man has to have the confidence and self esteem to believe that chasing won't work, doesn't work and can't work.