According to Kelly, on a romantic level, Styles, 27, and Wilde, 37, are “indeed compatible” despite their differing air signs.
“At face value, Harry — an Aquarius — and Olivia — a Pisces — might not have the best compatibility,” she admits. “But when you bring in the moons, you bring in Venus and you start to look at how the charts interact -—not just in parts, but holistically — you see that the compatibility is actually really strong between these two.”
Olivia Wilde; Harry Styles.John Shearer/Getty; Dia Dipasupil/FilmMagic

The One Direction alum has “one of the airiest charts I’ve ever seen,” says Kelly about his Aquarius Sun, Libra Moon and Libra Rising. As she points out, air signs are all about the mind, meaning “they’re cerebral, intellectual and revolutionary.”
Listen below to a conversation with Aliza Kelly onour daily podcast PEOPLE Every Day.
“Harry is an air sign king. He’s all about breaking the rules,” exclaims Kelly, pointing to his gender-fluid fashion, surprising career turns and age-defying relationships as examples.
In January,PEOPLE confirmed the couple had begun datingafter sparks flew on the set of their upcoming thrillerDon’t Worry Darling.They’ve since grown close, attending a friend’s wedding last winter andvacationing in Italyin July.
“Dating someone 10 years his senior, which feels culturally significant and envelope-pushing… is an opportunity to check our biases,” Kelly says about the double standard of men being celebrated for dating younger, while women are often judged for doing the same.
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“When it comes to age and compatibility, I cosign,” she adds about the couple,whom a source told PEOPLE in Septemberseem “very serious and happy.” Sources previously said Wilde struck up a close friendship with Styles after breaking things off with former fiancéJason Sudeikis, with whom she shares son Otis, 7, and daughter Daisy, 4. As they spent time together on and off set, their friendship “quickly turned romantic” and “Their chemistry was very obvious,” said an insider.

Upcoming episodes include “Prince Harry& Meghan’s Perfect Compatibility,” while later features will explore Hollywood’s hot and heavy couples, studyDoja Cat’s shot to stardom, and much, much more.
source: people.com