Last month, Selena, 24, was spotted wearing the "Starboy" singer's outerwear on Instagram, prompting The Weeknd (real name: Abel Tesfaye) to call her out on the social media platform.
"Sweater," he cheekily wrote his girlfriend in the comments.
As expected, fans were loving the online flirting — and were sure to screenshot the rare moment of digital PDA.
"They are soo cute, she stole his sweater and she always likes wearing his clothes," one follower wrote before another added, "Hopefully we get to see more of him and Selena together during the 9-day break in his tour that's coming up!"
"It’s serious, very serious,” an insider told Hollywood Life. “The Weeknd has already told Selena that he loves her and vice versa. He speaks a couple of languages and has made sure to confess his love in English, French, Spanish, and Amharic.”
The source continued, "Selena, of course, loves how romantic he is and melts every time he says those three little words, or two, depending on the language.”
The couple is still clearly going strong, but fans of the pair should not expect to hear much about their relationship from the former Disney Channel star.
Selena opened up to Vogue recently about why she’s suddenly more closed off when it comes to dating in the spotlight, revealing that everything she's "said about her relationships in the past has come back to bite her."
Meanwhile, her ex-boyfriend Justin Bieber is coping by hanging out with a Selena lookalike in Rio.
For a look at our predicted relationship timeline, click through the gallery below!