"They were together but it was never serious," the source tells E! News. "They are both focused on their careers."
The insider says they weren't often in the same cities at the same time, noting, "He has a full slate with a ton of travel and it didn't make sense logistically."
Momoa and González sparked romance rumors in May, about a month after he was spotted at the premiere of her movie Ambulance in April.
"They have been dating casually for a couple of months," a separate source, close to González, told E! News last month. "She really likes him. She is very focused on her career right now. But everyone loves him, and he is a fun guy to be around."
"The love between us carries on, evolving in ways it wishes to be known and lived," they wrote in a joint statement shared to Instagram in January. "We free each other to be who we are learning to become…Our devotion unwavering to this sacred life and our children. Teaching our children what's possible – Living the prayer. May love prevail."
While they're no longer a couple, Momoa and Bonet—who share kids Lola Iolani, 14, and Nakoa-Wolf, 13—have continued to put their family first, as seen when he brought their children to see Zoë Kravitz (who Bonet shares with her ex Lenny Kravitz) in The Batman at the film's premiere in February. As Momoa told Entertainment Tonight, "It's still family, you know?"
Still, he admitted going through the public breakup wasn't easy. "Mahalo to the fans and press for being generous and giving us space for the children it's hard enough separating in the public eye," he wrote on Instagram after the event. "We appreciate the continued privacy through these times."
E! News has reached out to Momoa's and González's reps for comment but has yet to hear back.
This post was updated on June 15, 2022, at 4:30 p.m. PT with information from a source.