James Kennedy, star of the Bravo reality TV series "Vanderpump Rules," stopped by the set of "Watch What Happens Live" and said he regretted his behavior during his breakup with ex-girlfriend, costar Kristen Doute. Bravo cameras captured the former couple's heated breakup during Monday night's episode of the show, which showed Kennedy in an unflattering light.

On the episode, Kennedy arrived at Doute's apartment to pick up the last of his belongings after they decided to call it quits, according to E! News. The exchange started out peaceful enough, but the exes started to insult each other. After they each took jabs at each other, Doute kicked Kennedy out of her apartment and Kennedy called her a "slut" and spat at her door before he left.

"James, watching it back, do you regret your behavior towards Kristen?" Cohen asked during his interview.

"It was disturbing for me to watch back," the British DJ said, fidgeting in his chair. "Obviously I'm getting a lot of hate right now and it's hard for me to even think back, but yeah I do regret anything I've ever said. I hate retaliating with words but when you're in love with someone and get hurt, stupid things come out."

He also denied Doute's allegation that he only dated her to get more screentime on the reality series, which focuses on the staff at "Real Housewives of Beverly Hills" star Lisa Vanderpump's SUR restaurant.

"It's not like I was banging her for four months and became a primary," Kennedy told Cohen. "We were together for a year and half, we had a Christmas tree together last year. I don't understand where she pulls that s--t out of her a--."

Watch a clip from the interview below.