Yes that can be true. She can get past it over time. She just needs your reassurance (emotionally, physically) that she is worth your love, support, attention, etc. Best thing to do is not to ever treat her like she had been in the past.
I don't think she is begin emotionally abusive to you but to herself...as if she does not deserve what she has with you. I've been in her shoes and I've said those things.
I left an abusive marriage and I did not want another relationship, ever. Then this wonderful man dropped into my life and he was and still is the opposite of my ex. It took a while for me to accept him that he loved me and that I was worth loving ... he is true and pure and not evil and once I let him begin to love me and show me that I am someone than I began to love myself once more and along the way I gained my self-esteem. This month we will be married 13 wonderful years, together for 14. He made a comment recently that we have not been together long enough.
If you love her, hang on and let her know how you feel. She will need to hear it a thousand times, question is are willing to say it a thousand time?
Best to you both