Quote: I think there's a part of me that expected him to "support her."
When my H and I reconciled after our separation 5 years ago, I thought he would defend his actions and those of the OW. I found that he didn't, that he was supportive of my struggle to accept the PA, and that he didn't defend her at all. In fact, it was quite the opposite. I think he wanted to demonize her as much as I did at the time.
Anyhow, I think this is normal...it's probably his way of showing you it's over and that he doesn't have feelings for her anymore. I think it's good that you were able to get some of this out of your system and that your H didn't flip out about it.