Wow, Sedona. What an interesting analysis of Mozzie where Peter (and El) are concerned. I've noticed that Peter's impression and feelings about Mozzie are pretty stable and unchanging. He sees Mozzie for who he is and has compassion (if not occasional impatience) for him. Mozzie seems to be distancing himself from Peter over the last few episodes. He has seemed so much "cooler" in his relationships, even with Neal (especially at the end of On the Fence). I suppose he is preparing to run with the last big score. I see some fireworks in the making with him feeling betrayed by Neal (who lied to him about the manifest), and then having to come to terms with how he feels toward Peter for Elizabeth's sake in upcoming episodes.
I couldn't help but notice that Peter felt a concerned empathy for Mozzie (and Neal) when they discovered that Keller had killed Hale. The moment they saw Keller with the gun on Hale in the security feed, Peter reached out and put his hand on Mozzie's shoulder (and then moments later asked Neal if he was OK).
Excellent point, Mary; I noticed that reaching out to Moz as well. Peter is a very caring, emphatic person and being in law enforcement, he certainly knows what the family/friends of murder victims feel when they see their loved ones deceased. Moz has been trying to distance himself for some time now but hasn't been able to stick with it anymore than Neal has with his flight to freedom via the treasure.
I look for some intense fireworks next week between Peter and Moz.