You got that right. It's b.s. and not worth really considering what her "gut" is telling her. And GH31, she acts like this is solely her choice whether you are together or not. It isn't just her choice. I would make it reasonably clear to her that you have a say in this, and as it stands now, I'd make it clear that you won't have her. She needs to work just as hard to get you back as you work to win her back. This time she came back without so much as an apology or feeling bad.
You cannot be lonely if you like the person you're alone with. Dr. Wayne Dyer