As if Spencer Pratt couldn’t be more hated, he’s decided to take it up a notch. Mary-Kate Olsen was on The Late Show with David Letterman to promote her new indie film The Wackness. Dave started talking to her about high school, and asked if she went to school with anyone famous. Mary-Kate nods and says Spencer Pratt.

From that point on, Dave proceeds to insult him (totally deservedly), calling him “oily” and “wormy.” Mary-Kate is totally nice and sweet and giggles and seems uncomfortable, but she does a pretty good job of not giving in to Dave’s insults. Letterman is clearly the one doing all the instigating. She shared one little story about Spencer having a bad temper, but that’s it. And I’m sure she’s got better dirt on the guy. Dave continues to egg her on – and I think she handled herself with remarkable aplomb.

But of course Pratt jumped at any opportunity to start a new feud with someone – and Mary-Kate is so much bigger than Lauren Conrad. It’s like high school all over again.

“I don’t really get why she’d use my name to get press for her little indie film that no one’s going to see,” [Pratt] told Usmagazine.com Friday. “She should probably focus more on not getting dressed in the dark than on me.”

While promoting her indie film The Wackness, Olsen told Letterman that Pratt played soccer at her high school and “he does not have a good temper. He would walk off the field.”

“I know I’ve made it in Hollywood when a famous troll is talking about me on Letterman,” Pratt told Us.”I forgive her, though,” he added. “She’s had to go through life as the less cute twin, which must be tough.”

[From Us Weekly]

Okay douche bag, she didn’t use your name, Letterman did. Mary-Kate was clearly uncomfortable and trying to steer the conversation elsewhere. Watching the video, you get the impression that she’s trying to give Dave some little comment so he’ll give it a rest and move on to something else. How stupid can this kid be to not even be able to figure out who said what? It’s on YouTube for crying out loud, I’m sure he’s got it playing on a loop on his computer.

Seriously, how can this guy not understand how universally loathed he is? I get that he’s got a huge ego, and that probably shields him to a certain extent. But that only goes so far. I don’t care how delusional someone is, there is no way this guy can’t realize he’s hated. I’m sure strangers on the street yell at him and tell him what a douche he is. And I’m not trying to be funny here, the guy really is such a jerk that I’d bet you anything it happens. Okay, yes by me. But you know he deserved it. Wearing that ridiculous hamster face of his.

Here are Spencer Pratt and Heidi Montag arriving at Caesars Palace for an appearance on ‘The View’ on Thursday. Mary-Kate is shown outside the Late Show in the header photo. Images thanks to WENN.