I thought that too. I remember my H being very arrogant and almost stuck up at one point during this. I am still not sure what that was about.
I am curious to see how he is going to justify being pissed at you if it is because of the article. I am thinking one of two things: 1. She gave him an earful for discussing their R with you (how's that for irony?) or 2. ...he never really bothered to break up with her like he told you and she was pissed that you thought that they were broken up.
Either way I think it is because you put a little kink in his fantasy world.