I know it's hard, but I'm finding that it's worth it to help rebuild my trust in my wife. While I don't work with my family, I was less than a month into a new job in a new city when D-Day happened.
I can't say that my wife or myself were exactly happy to hear from each other when panic or sadness set in, but there was something satisfying in it despite that. The fact, for her, that even though she'd hurt me that I reached out to her for comfort in a dark time was a positive thing. Sure, it brought up her actions and the harm those actions had caused, but it also reassured her that I wanted to stay a partner with her. For her, at least, the positives outweighed the negatives.
And, really, the same for me. She learned that even though she hurt me, hurt me badly, that I still was willing to be there for her when she needed me. I wasn't going to sugar coat what she'd done, nor sweep it under the rug, but I would be there for her as a partner and as a friend. It took, it takes, a lot of strength on both our parts, but I think it's been worth the effort.
Something to talk about with her (and your MC, maybe) at least.