Bah, I think its actually healthier for you to just tune out and go inward, rather than try to have compersion. Protect yourself first. Leave them to their own devices.
It's interesting you say that about tuning out. I kind of feel that's what I have been doing, and it's allowing me greater acceptance, or giving me peace with it all, which, oddly, is allowing me to feel closer to Nora! Our communication has certainly improved (as has our sex life).
Have you confronted Nick? I would've told him either he tells Maya, or you do.
I haven't confronted Nick yet. I'm sure the day will come when I do. I try to think before I act. The interworkings of his marriage are still pretty unknown to me. It's obvious that he and Maya love each other; I just don't see the "in love" when I look at them. Of course, that's from the outside looking in. I have spent a few evenings with them both, and I really do like Maya. Thing is, I'm a product of a very ugly divorce, and I believe that if Nick and Maya are ever going to get their shit together, it needs to be of their own accord.
I know it's like being on a train without a complete set of tracks. I know this will end poorly for them. I just need to protect myself, and do my best to be there for her when it runs amuck.
It almost seems like Nora is kind of just finding herself. We've had discussions about threesomes, swinging; she's just really out to explore and find herself. I've been around the block a few more (quite a few more) times than she. She's lived a pretty vanilla life. I don't know what's caused her sudden need to explore. But I'm no shrink.
If I blow, it'll just be a mess. If I keep my cool, take care of myself and protect her, it will, in turn, help all involved, I think. It's not like I ever thought she was a pure as the driven snow. Hell, our first night together was a threeway. My concerns aren't in the immediate. As long as I can stay calm, I can do that. It's the long term that worries me. It's the 5+ years down the road that scare me to no end.