Has Dean McDermott turned over a new leaf?

An insider on the set of Chopped Canada exclusively tells Breaking Celebrity News that Tori Spelling's husband has done a complete 180 since cheating on his wife last season — keeping his nose to the grind and focusing on the show.

"Dean is like a totally different guy this season, but in a good way," the source told Breaking Celebrity News now that McDermott, 47, has been back in Toronto for Season 2.

"During Season 1 you could tell he was partying a lot, but this year he's keeping his head down, particularly with the women. Any flirting is clearly off limits."

Spelling, 41, and McDermott publicly played out their struggle to save their crumbling marriage during the six-series docu-series, True Tori, with the season finale focusing on whether or not the former 90210 star could trust her hubby to be back in Toronto, where he cheated last Dec. with 28-year-old Emily Goodhand.

"Dean isn't really saying much about what happened last year, but if he mentions Tori and the kids at all it's