And to mark the occasion, the Celebrity Juice favourite shared a gorgeous throwback photo and heartfelt message for her musician beau with whom she shares two children; Rex (three) and Honey (one).
Posting to her 1.9million followers on Instagram the DJ and author wrote, "Happy 3rd wedding anniversary to my wonderful husband.
"1095 days, 2000 coffees, countless nappies, hundreds of sleepless nights, millions of laughs later.... we're still going strong," she added.
The couple were married at Richmond Register Office in south west London in 2014 where guests included Irish presenter and friend Amanda Byram.
Cotton wore a short-sleeved white tulle Pucci gown for the big day, designed by Norwegian Peter Dundas which featured striking silver sequined detail around the neckline. The radio host also wore strappy stilettos and a jewelled headband.
Earlier this year presenter Cotton revealed in her book Happy that she had been diagnosed with depression when she was working as a DJ at BBC Radio 1 and was prescribed anti-depressants by her doctor.
"I felt so drained and my lust for everything that I love wasn't there any more," she said.
'I'm very optimistic by nature, I wake up in the morning and I'm very excited about my day, I'm so pumped and enthusiastic about the smaller things in life and that was dead."
The presenter said that husband Jesse's open-mindedness and free-spirit was a positive outlook that she was lucky to have.
"I'm exceptionally lucky that I met someone who's so unbelievably free-spirited and curious about life and open-minded."
"He's constantly a good soundboard and has a very positive outlook."
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