Being supportive depressed WS

D-day was 2 months ago, my BP wife had third affair while being manic. Now she is trying to reconcile. I am at the moment broken beyond repair it feels, though I am staying at the moment.

Now she expects me to be supportive for her pain because she is feeling depressed about the pain and damage she has caused. I told her she can't expect me to feel sorry for her pain at this moment. After that she told me this is also the reason of her last affair (seeking support outside the marriage)..

In my opinion she still does not sound like she comprehends what damage really has been done, or that I should believe her that something like an affair will not happen again..

Is it really that strange that I can't support her for feeling bad and she still has the courage to play the support outside the marriage card (seeking support with other men)?