Thanks to both of the responces. My pair have been locking up since October. They locked frequently in October. I gave them a few weeks ago and now they are locking up again.

I was nervous when they first started locking up because there did seem to be some aggression. Everything worked out though it seems and they are both doing fine.

I don't know yet if the female is graved, but she has shed twice in a month. Once at the end of October and a few weeks later this month (Novemember). I don't know if this is any indication, but I know in general large snakes do not shed this often. This is my first experience with Dumeril's, so I don't know.

And a small update. I just purchased a second male. I am not introducing him, but I am really excited to have him.