No. You know what this is? This is Dean finally emotionally snapping. Kevin’s dead, Cas is AWOL, Charlie is off in Oz, Sam doesn’t want anything to do with him past keeping their relationship purely professional, Crowley is a literal mess, and they barely just escaped the crazy with dude with their lives. If Crowley hadn’t been around, Sam would’ve been brutally tortured because of Dean, and Dean could have done absolutely nothing to have stopped it. On top of that, the first blade is making him feel feelings, and I’m sure we can all agree that those feelings are not the good sort. He’s been completely emotionally drained, everything he knew as a fact is turning upside down and inside out, he’s been messing up so much lately, and he’s really feeling like he’s unwanted since his one pillar of support, Sam, is currently keeping him at arm’s length. The Impala, which represents so much more than just a car, is the one thing that is always a constant in Dean’s life. The impala is important to him. And it being keyed was the last straw for his emotional breakdown. Look at his face in the last gif— he’s barely keeping himself together.
