Jason Momoa's romance with Adria Arjona is the "real" deal.

The 44-year-old actor and Adria recently made their relationship Instagram official, and a source has now revealed that the loved-up duo really "relate to each other".

The insider told PEOPLE: "He cares about her. It's real.

"She's good to him - and a lovely and genuine person and real like he is. She has a good sense of humour and is easy to be with. They relate to each other."

Jason split from Lisa Bonet in 2022 after five years of marriage.

And earlier this week, the actor took to social media to share romantic photos of himself and Adria, 32, during a trip to Japan.

He wrote on the photo-sharing platform: "Japan, you are a dream come true you blew my mind. we’re so thankful for everyone who opened their homes, making memories with new friends and old friends, sharing another amazing adventure with mi amor. ON THE ROAM motorcycles and mayhem. All my aloha j (sic)"

Prior to that, Jason revealed during a Q and A section at a Comic Con event that he was "very much in a relationship".

However, Jason didn't share Adria's name at the time, insisting that he was "enjoying the privacy".

In response to a question about his relationship status, Jason replied: "I'm very much in a relationship. You'll find out very soon! I'm very much in a relationship, I've been in a relationship for a while.

"I'm just really enjoying privacy because back in the day no one gave a f*** and now everyone does, but I'm still the same guy. It's been really nice because everyone has kind of [left me alone], but ... yeah, thank you very much!"