Dean and Lesley met while filming The Bachelor Winter Games, the upcoming newThe Bachelor franchise spinoff, and they were just spotted together at a festival looking pretty smitten with one another, Us Weeklyreported.
An eyewitness reportedly saw the pair at a Chase Sapphire on Main party together at the Sundance Film Festival in Park City, UT, on Friday.
"They were holding hands walking through the party and looked very much like a couple," the eyewitness told Us, adding that Dean and Lesley stood by themselves and were "talking only to each other."
Dean has reportedly been sharing photos of the travel blogger on his Instagram Story, while he and Lesley also began liking each other's social media posts in December.
Because of his behavior in Paradise in which he bounced back and forth between Kristina and Danielle -- who were both head over heels for him at the time -- Dean was criticized for being an insensitive playboy.
However, he used that reputation to his benefit and began hosting a podcast in September 2017 called Help! I Suck at Dating. Dean briefly attempted to rekindle things with Kristina in the fall, but their relationship apparently went nowhere.
An insider previously told Us that Dean redeemed himself on the Winter Games spinoff and embarked on a new romance. Fans will watch Dean's new love story unfold when the show premieres February 13 at 8PM ET/PT on ABC.
Another source told E! News that "Dean is really happy with Lesley."
"They are both very goofy and have a lot of fun together," noted the source. "Things are pretty serious and they are exclusive as of now. They have been spending a lot of time together since the show ended filming."
Lesley got her start on reality TV when she fought to win Sean Lowe's heart on The Bachelor's seventeenth season in 2013. She finished in fifth place and was eliminated just before hometown dates.
Although she didn't appear on a subsequent season of the franchise, Lesley remained in the spotlight by documenting her travels on social media and sharing personal stories on her blog.
For instance, Lesley was open about the fact she had "preventative surgery" and underwent a double mastectomy in April 2017 after testing positive for the BRCA2 genetic mutation, which put her at a high risk of developing breast and/or ovarian cancer.
Lesley, a former political consultant, had doctors insert breast implants three months later in Little Rock, AR, and she wasn't shy about posting before and after photos. Lesley was inspired to attack this situation head-on since her mother is a breast cancer survivor.
The Bachelor Winter Games will feature 14 international bachelors and bachelorettes from such countries as Switzerland, Japan and Australia as well as 12 U.S. fan-favorites competing in winter-themed challenges and hopefully finding love in between at a luxurious Vermont resort.