United Kingdom, Oct. 27 -- Christina Haack "works hard" to stay friends with her ex-husbands but it's worth it for the sake of her kids.

The TV star has been married three times and now has a good relationship with her first husband Tarek El Moussa - the father of her daughter Taylor, 15, and son Brayden, 10 - as well as her second husband Ant Anstead - father of her six-year-old son Hudson - and she's now opened up about spending time with Tarek and his second wife Heather Rae El Moussa as well as boyfriend Chris Larocca.

Christina, 42, told PEOPLE: "It really takes everyone in a co-parenting situation wanting to make it work. I have people message me all the time to be like, 'How did you do that? My husband's ex hates me,' or 'I could...