Edit is a very good word in this context. Yes, once we start coming out, the decision continues to present itself as to who we think needs to know and when and how we should make the revelation.

I'm in a somewhat similar situation. I've been in a mixed-orientation relationship (romantic, but unmarried) for 10 years. I came out to my girlfriend as bi on our first date. With the exception of her family, I'm out to the world. She has never demanded that I not reveal my sexual orientation to her family. It's just that the subject has never come up. Their assumption is that I'm straight. Why would they think otherwise?

And while, as time goes on, I feel increasingly uncomfortable being around people who don't know I'm queer, the longer the truth remains unspoken, the more difficult it becomes to even imagine bringing it up to them.

Ultimately, the main reason I haven't pushed the issue is out of consideration to her. I don't want to put her in a position to have to explain and justify her choice to stay in romantic partnership with a bisexual man. Being in a mixed-orientation relationship is challenging enough. Having to defend one's decision to do so from skeptical relatives can only make the challenge doubly difficult.