I really enjoyed this episode, it was a real punch to the gut when I worked out Grey was going to die and would be the previous host for Adira's symbiont. I think Grey's appearance at the end is interesting, we've certainly had glimpses into what that relationship is like for a joined person. This is another level and explores that more, and can easily be explained as a result of the trauma. If I followed correctly, Grey's joining was recent and he and Adira were still adjusting to it, so there may well be a sense of loss for the symbiont to know a being so entirely for such a short time. To then join with someone who knew and loved that last host, it's not a surprise that's something that would manifest itself. I think that's a very sad, very beautiful thread to Adira's story. They watched their love die, and now possesses his memories of his love for her as well as her own memories of the same time.
