Jennifer Lopez has a "simple" outlook on love.

Jennifer Lopez and Casper Smart

Jennifer Lopez and Casper Smart

The 'Shades of Blue' actress has been married three times and dated famous men, including Sean 'Diddy' Combs and Ben Affleck, and insisted her rule in relationships is to stick with it if she's happy and ditch it if she's not.

Jennifer - who has dated 'Honey 2' actor Casper Smart since 2011 - told the Daily Mail Weekend magazine: "I feel good in the moment, and if I feel good when I'm with somebody that's great, and if it doesn't feel good, then I stop it. It's very simple."

However, she admitted that breaking up with a partner is not so easy and the fall-out from her last marriage to Marc Antony - who she officially divorced in 2014 after they separated three years prior - has been difficult.

Despite her gruelling residency at Las Vegas' Caesars Palace, managing her clothing and perfume lines and starring in the TV cop drama, she says co-parenting her eight year old twins Max and Emme with ex-husband Marc Antony is "the hardest thing" she does.

She said previously: "When it comes to work I never get tired, but with personal failures I find it hard... When my marriage to Marc ended it wasn't easy to find forgiveness. It wasn't the dream I'd hoped for and it would have been easy to fan the flames of resentment, disappointment and anger. But although Marc and I are no longer together, he is the father of my children. So I have to work to make things right, and that is by far the hardest work I do."