I didn't get a creepy vibe from CW in the "Flossin" video until it was pointed out. He does that at other Thrive events too-- just stands in the background and glances SW's direction. IDK, it might only be creepy now because he murdered her. I think he was checking to see where she was/what she was videoing. IMO, it's a sign he wasn't engaged with the conversation he was in for sure and was more interested in where her attentions were and what she was doing. It could mean he was controlling or just too insecure to let SW out of his sight.
What do you all think of CW at the Metallica Concert? See video (The camera pans to him twice):
Shanann Watts
ETA: Another Metallica Video with better lighting:
Shanann Watts
(I get the creeps from him in the Metallica videos for some reason but he was supposedly happy and enjoying his favorite band

)