Celebs Go Dating star Olivia Bentley is said to be dating TOWIE star Demi Sims after revealing she was dating a mystery woman.The Made In Chelsea beauty teased a new romance with a woman on Monday’s episode of the hit E4 reality show, revealing she had shared a kiss with a new female interest. According to reports, the woman in question is none other than Demi Sims, 23, after the pair hit it off.