I'm surprised you pretended that you believed what you just said.
The dialogue didn't sound forced at all, just quiet.
You have no idea where the camera was placed. He didn't go near it, so why would it be knocked over? Even it it was knocked over, that'd still be part of his rage-reaction. It'd probably look a LOT more fake if it did get knocked over actually, because it's a random place for him to send his anger.
It showed her deleting his characters, clear as day. It even showed him logged in with a fuckton of people around. His reaction was also believable. He logged on, saw one character went "wtf?", relogged, checked his realm, and saw his characters still gone..and it took him a few seconds to realize someone deleted his characters.
It's pretty common for girlfriends, or hell sometimes boyfriends, to delete their partners characters due to neglect. Honestly if someone is a WoWfreak, they should date another WoWfreak...or this happens.
People don't always yell when they rage. I don't. I can smash things and not alert anyone, but if I yell...i've just pissed off my entire household, so it's stupid to do (when i'm mad, I don't want to be bothered). There are lots of people who think similarly.
Stop pretending to have superior detective skills, or at least, make sure your points are somewhat valid before you post.