It would take a while to describe how it's affected every single one of them (if you're interested in the entire trajectory, I'm sharing it here), but I can write in general terms about how it affects my existing relationships.

First, of course, there's my fiancée. Cuckolding has surely brought us together in many ways. Think about it, I've frigging told her I wanted her to have sex with other men, none of us will ever be afraid to talk about anything—because nothing will top that. During the discussions that followed, we've both lowered all of our defences, we've put everything on the table, we've shared even those things we were most ashamed about, so now there's no need for secrets between us—our trust is profound. That's also enabled us to be far more intimate—even though we're not having penetrative sex. Finally, it's helped make her comfortable in assuming the the dominant role in our relationship.

The effects of being a cuckold go deeper for me, though. I don't think anyone can do it long-term, particularly adopting it as part of one's identity, without changing internally. Before I discovered this lifestyle, despite already being into femdom back then, I was remarkably bolder. But as I progressed in the lifestyle, I started feeling more submissive—specially towards women. But there's more. I don't know who is having fun with my fiancée and who knows about it, so I've become far more respectful when dealing with other people. How can I place dominance games with a guy who may be fucking my fiancée (or that might start doing it in the future)? How can I put up a display of self-assuredness to her friends, when any of them may know that I'm a cuckold?

I'm a business owner, doing well enough, and there's been times when that affected me. My company's had some rough periods, so I had to couple with lots of stress over the years, and I wasn't always a nice person to be around. But since 2009, I have often heard people say they were impressed with how much I'd changed, that I'd become a much better boss, etc. Well, thing is, after I became a cuckold, whenever I interacted with a male employee I'd be thinking, "I'd better treat him well, which I hope he'll remember if he ever starts fucking my SO," and with female employees, "I'd better be really nice to her, so she'll keep her mouth shut if she ever hears anything." Both things have happened, so my head's on the right place.