Riddle, 27, said English MMA fans spit on him and booed him when he fought in Manchester in 2009.
"What matters is going back to England and redoing that thing over again. In 2009 I fought in Manchester, got spat on, got booed and I just wasn't expecting the way they treat you there," Riddle said. "Here, if you don't do well, you can expect some boos but I've never been spit on and called the names they were calling me before. The things they did to me, I would only do to somebody I hated. It was outrageous and I let them know that. I don't have anything against English fighters. I've got something against English fans. I think the're ignorant, they're disrespectful and I would be ashamed if I ever acted that way ever in my life. Honestly, the Dan Hardy thing is just a great match-up for me. He's got a big name, the red mohawk working for him and I wouldn't mind beating the crap out of him."
Riddle is heading back to England on Feb. 16, as he fights Che Mills in a key bout on the UFC on Fuel TV 7 card at Wembley Stadium.
"Che Mills, I respect him," Riddle said. "He's hard-hitting, he's fast, he's talented, he's athletic, but we all know that he's got a big gap in his game and I'm gonna expose it. That's what he's done. If you look at his record, he's got five losses. Three submission, one TKO and one decision and they're all by guys that take him down and beat him up. We'll see."