Celebrity Celebrity Relationships Celebrity Dating Cody Simpson Posts Cuddly Selfie with Girlfriend Miley Cyrus: 'In Love with My Best Friend' Cody Simpson and Miley Cyrus have been dating for 10 months By Maria Pasquini Maria Pasquini Maria Pasquini is the staff editor for human interest’s digital vertical at PEOPLE. She has been working at PEOPLE since 2017. People Editorial Guidelines Published on August 2, 2020 02:45PM EDT Miley Cyrus and Cody Simpson. Photo: Cody Simpson/Instagram They’ve got the best of both worlds! Cody Simpson shared a loving tribute to girlfriend Miley Cyrus over the weekend, posting a selfie of the pair, who are 10 months into their relationship, cozying up to one another in a car. In the image, the "Mother’s Daughter" singer, 27, wore an orange bucket hat, a white T-shirt and a classic red lip. Meanwhile, the Australian singer, 23, opted for a black T-shirt and a pair of matching sunglasses. “In love with my best friend,” he captioned the loved-up photo of the pair. A Complete Timeline of Miley Cyrus & Cody Simpson's Relationship Simpson has also been very supportive of Cyrus, who recently revealed that she’s six months sober. "She is very happy to be dating Cody. He is very much into clean, healthy living and supports her sobriety," a source told PEOPLE. "They are a great couple." Last month, Cyrus told Variety that she became "sober sober" following her vocal cord surgery last November. “The thing that I love about it is waking up 100 percent, 100 percent of the time. I don't want to wake up feeling groggy. I want to wake up feeling ready,” she said. RELATED VIDEO: Miley Cyrus Rocks Lingerie and Gives Boyfriend Cody Simpson a Haircut During Sultry Date Night Singing Cyrus’ praises earlier this year, Simpson said that “being with Miley is a wonderful thing in my life.” “She is creative and inspiring, fiercely independent and encourages me to be my own person, too. We are both creative individuals who support one another with our work,” he said in an April interview with The Sydney Morning Herald. Cody Simpson and Miley Cyrus. Miley Cyrus Instagram Miley Cyrus Adorably Dances with Boyfriend Cody Simpson on TikTok: 'Let's Get Back to Werk' Miley Cyrus and Cody Simpson with her dog Bo. Cody simpson/instagram No strangers to sharing heartfelt tributes to one another on social media, Simpson had nothing but wonderful things to say about Cyrus when they celebrated their six-month anniversary in April. “Six months with you is worth a lifetime with anyone else,” he wrote alongside a casual black-and-white snap of the singer. “I love you.”