I would not be surprised if there is still betrayal happening--but even if there isn't, there WILL be in the future because this is not reformed thinking she is showing. It is wayward thinking. Will she pull out of the fog eventually? Maybe with time. But RIGHT NOW she cannot act to repair trust, and your best bet is to accept that instead of giving her the benefit of the doubt and expecting her to turn around and start doing what she needs to.
I know that uncertainty is hard. But right now, you can only act on what you see, and what you see is very alarming. 'Retaliation'? Not okay. You have to see what she says in her better moods as only words. There are no actions yet. So stay with the 180 no matter how desperately you hope and wish that the remorseful sounds she makes are to be trusted. I went with my hope and what I wanted to be true when I was in your situation (there were some good signs, and some bad signs, and I hung in there with faith that the bad signs were aberrations and the good stuff was 'real')...boy oh boy was I wrong
You might want to check out this thread on gaslighting in the general forum: http://www.survivinginfidelity.com/forums.asp?tid=521304
Shift your focus onto yourself and try to stop wondering what is going on inside her head. Easier said than done I know but much better for your ability to move forward in a healthy way. Hang in there.