Feisty Kelly took to Twitter on Tuesday (8 April) to respond to someone who tweeted: "Let's see if you actually walk down the aisle ;)."
British model and actress Kelly replied: "Wow, you're a relationship expert? Thanks for the kind words and support. BEYOND."
The relationship expert replied that she didn't want to see 34-year-old Kelly getting hurt, as had happened with ex-boyfriend Danny Cipriani, adding: "You deserve the best."
Kelly tweeted back: "Thanks for the "genuine" concern. I think I'll be alright."
Many people were surprised in March when Kelly announced that she and former Royal Marine and Gladiators star David had become engaged after just twelve weeks of dating.
Not so surprised was David's sister Angela, who told Reveal: "David is ready to settle down with Kelly, have a family and grow old with her. They both want kids and are both serious about their careers. I think they'll last the distance."
Kelly and David are currently together in LA where Kelly is filming an NBC sitcom pilot called One Big Happy alongside Elisha Cuthbert and Nick Zano.
One thing, however, that we won't be seeing on screen is a real life wedding. Yesterday, Kelly shot down rumours she was planning a fly-on-the-wall reality series documenting the build up to her big day.
"OMG that would be awful!!!! This is NOT happening," she tweeted.
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Celebrities who've become engaged in 2014 in pictures:
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