Pam - I'm a little confused. Aren't you moving into your new house soon? Wasn't it your plan to get out of this house as soon as possible? So why shouldn't he be listing the house now?
I agree, it was rude of him not to tell you in advance - but that doesn't really change the underlying fact that it makes perfect sense to list the house now that you will be moving soon. And aren't you glad to know he won't be living there with creepy Janice?
Just get out of there and into your new place. You'll feel so much better once you do.