Ok, so if I read this right, your SO is supportive, but expected that your two gendered selves would remain separate in the eyes of the rest of the world. Well, it seems that there is a leak in the dyke.
The process now seems to me to be the same as the process the two of you had as you progressed in the evolution of your feminine self: Do It Together!
You are still the same loving couple that you were, so keep the united front. No catchy come-backs, no snide remarks, no escalation of the pissing! If someone is belligerent, they are simply told it is a personal issue within the marriage. If someone tries to make fun of either of you, you simply love each other and always have. If someone is truly curious, then a private conversation could be had, but with both of you present.
Take the high road and all this issue will quickly go away, but do it together.