That is true. When you are in a couple, everyone refers to your partner as "tu marido", "tu mujer", and it is totally useless to clarify you are actually not married to each other. In the eyes of everyone you are married.
I think you may have misunderstood me (since you quoted me to assert things I agree with as if they were in opposition to what I think -- or at least that's the way I perceive it), but you're far too cryptic for me to even try to understand.
Obviously I don't know your secret handshake ;-). Perhaps it's best not to dwell on it.
My dress (the one with the little flowers) lightened up and drew circles around the dance floor. I think that because of this dress I got noticed by the milongueros sitting at another table. An old man invited me, and as I once decided that sometimes you have to throw a coin into the Trevi fountain, I agreed.
Now if she ever happens to send a report stating that no local dancer invited her, I'll mention it of course.