Spencer Pratt has retracted his harsh comments about Mary-Kate Olsen, apologising for referring to her as the “less cute (Olsen) twin” after she criticised his bad temper.

The fashionista upset reality TV star when she recalled high school memories of Pratt during a recent appearance on The Late Show with David Letterman, revealing he was a star soccer player who often flew into a rage on the pitch.

Pratt, boyfriend of fellow Hills star Heidi Montag, immediately proved the twin right by attacking Olsen in the media.

But now he admits he let his emotions get the better of him: "I apologise for getting caught up in trash talking, but she brought up an emotional subject when she mentioned the soccer stuff."

Pratt tells Us Weekly he has nothing but the utmost respect for his old school pal: "I'm secretly jealous of her. I want my face on a lunchbox, too."

Ideally, the only place we would like to see Spencer’s face is on the side of a milk carton.

See pictures of Spencer and Heidi in some vomit-inducing PDA here.