Should I be offended?

So last Thursday I was on my way to class when I ran into an elder who served in my mission(we will keep his identity secret but call him "Joe"). We talked for a brief moment and I went on my way to class. Later I called my friend Mel and mentioned to her that I had run into Joe. (she is good friends with him) She said that Joe had text her after running into me. Here is how it goes....
Joe: I ran into Anna. She is nice.
Mel: Neat.
Joe: I saw her from behind and thought I recognized her.
Joe: She is actually attractive, I am surprised.

Uh, what is that suppose to mean? Does this mean that before hand he had only really looked at my backside because that's how he recognized me? He must not have liked it because he said I was surprisingly attractive. Mostly this just makes me laugh. How random. It is good to know that maybe after being home from the mission for two years that I have finally lost all of my frump. Suprising.