"Weirded out" yeah but not incredibly rude and violent. (╹◡╹)
I feel like I'd be justified in being a bit "rude" if someone was taking pictures of me without my consent. The violence wouldn't be but don't be shocked if I throw hands.
I don't think the friend resorted to violence tho? But yeah, violence wouldn't resolve the issue here
Doesn't give you the right to look at his phone without permission tho
Sorry but if my close male friend (i'm a straight female) secretly takes a bunch of pictures of me and store it all in his phone i'd be weirded out too