Speaking to the French edition of Elle magazine, the singer-turned-model and actress said: "I don't have the recipe for happiness, but I think the engine is simply having the desire.
"It's not feeling obliged or forced or repeating yourself. I hate, for example, whenever you hear someone say, 'You have to work at being a couple'. No, you have to want to be there.
"And for me, I want to be right where I am right now."
Paradis, 39, and Depp, 49, announced their break-up in June. They have two children together.
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