Hi Tangled,
I'm glad you're doing so well! I do understand, once you worked things out, it moves to the background. 

For us it's often because we are somewhat active in support for others in a MOM, we discuss the subject of sexual orientation regulary. But that's in another mode so to speak.

However, for us it's important to acknowledge the mixed orientation aspect of our relation too (in balance with what we are overall).
Afterall, effectively we're just an regular husband-wife couple, which is logical of course and no harm in that. But for my wife that could sometimes feel like her sexual orientation is put in a corner collecting dust. Unintentionaly it could become and feel like a subject and aspect that's invisible. That's not what we intended, we intentionally chose and went for acceptance of ourself and eachother. Rainbow flags or painting her hair blue won't do, that's not us and it's not about group statements. On the contrary, we are persons, we choose eachother.

For us it can be in other, less obvious, things to communicate this. Like my wife telling me she finds a woman attractive. It's not threatening to me, we're way beyond that, and it's also absolutely certain she won't act on those litle flings in any way. But it's an expression of her sexual orientation she shares privately with me.
Sometimes I don't get that, blunt as I (typical man) can be, I don't understand well enough that this is important to her. I could easily discard it like: "well, I often see a woman I think attractive too". But no, it's important I give it attention, a sort of acknowledgement of her sexual orientation, simply because that's part of who she is. But not to dwell on it further makeing it bigger than it ought to, after all it's nothing threatening, nor is it putting me down being her husband. But I think these small things prevent silence could feel like avoiding the subject.

It could well be in your situation this is less important than MOMs where the gay is more on the other side of the spectrum?