Wedding Blunder

In case you're just tuning in, I was in a wedding two weekends ago. It was a bit of a difficult situation, but it all turned out pretty darn well if you ask me. However, when I am nervous, one of two things happen: I shut down and say nothing or I talk. Constantly. Which is what landed me in my blunder at the wedding.

I was standing at the edge of the parking lot waiting for Jon to show. There was a lady at the sign-in table that I had skiied with (in a group), and went swimming with (in a group). She was a nice lady and I remember enjoying her conversation. So, I approached her.
me: Hi.
Roxanne: Hello (clearly not remembering that she knew me, how rude...)
me: Oh, we've met before, just not with clothes on like this
Roxanne: (blankly stares)
me: I mean (here's where the excessive talking starts) at Perfect North and at the pool. I didn't mean without clothes on, I meant without normal clothes on. Like the dress you're wearing, which is very nice, I like it. I mean that you had a swimsuit on and snow gear on. Not at the same time though. Remember? With Ivy and Sonya? You know me, really you do and I totally didn't mean that we didn't have any clothes on. Stop. Talking. Now.

And finally I stopped talking and walked away.