Cole Sprouseand girlfriendLili Reinhartmay be asizzling off-screen couple— but she did not open up to herRiverdalecostar right away.

“Lili was a tough egg to crack,” Sprouse, 26, said of Reinhart in a new video forGlamour. “She’s very shy at first and reserved. I think it was about halfway into the first season she started letting people in truly.”

Reinhart’s first impression of Sprouse was not so stellar either. “I thought his voice was annoying,” the actress, 22, revealed toGlamour. “I was like, ‘That guy’s got an annoying voice.’ And now it’s grown on me, I guess.”

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Both Reinhart and Sprouse discussed the latter’sartistic pursuits. “She’s one of those people that consistently pushes me to be better at the arts that I’m pursuing,” the former The Suite Life of Zack and Codystar explained. “That’s just the kind of person she is. She inspires excellence out of everybody she works with.”

Reinhart countered, “Cole is one of the smartest, the smartest person that I’m friends with. He’s incredibly passionate about art, about photography, about acting, and I really admire that.”

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She added that she appreciates what a hard worker he is. “I’ve seen you edit your photos after a photo shoot, and you spend hours and hours editing them. You’re your own harshest critic.”

The duo also admires each other’s family ties. “I said you’re very loyal toyour family, because you are,” Reinhart complimented.

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Back in May, Sprouse and Reinhartwalked the Met Gala red carpettogether after months of avoiding romance rumors. Since then, the pair has gotten more open about their relationship: Shewrote him a heartfelt birthday messagein August, and heshared a topless photo of heron her own special day, calling the actress, “my love.”

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Reinhartwroteat the time, “It seems as if the world would still be a stranger to me, if not for you. I’m so thankful that our paths intertwined to form this beautiful adventure.” She added, “Happy birthday, my love.”

Riverdalereturns Oct. 10 at 8 p.m. ET on The CW.

source: people.com