Spoke with my partner today.
I'm not very good at keeping my gender experience on the table between us. I'm not very good at keeping her in the loop about what's happening for me in this area. But I brought it up today and it was good. I know it freaks her out at times. I know she doesn't wholly get it. But she is a good, supportive, insightful person - one I appreciate being able to speak to regarding these matters. As I described earlier this evening, she is an ally.
Of all this, I am very happy.