Mardi and Tchoupi are adjusting quite well to each other. We have been surprised as to how well they've not only adjusted but bonded. I'm not sure if Tchoupi likes Mardi better than Chango or if she's trying to cope with the loss, but she now seems more relaxed in the cage (she sleeps curled around versus straight now). And as I write they are as close as they can get to each other and sleeping away. Although we miss Chango terribly, this makes our hearts happy.