Amid reports that Riverdale鈥榮 Cole Sprouse (Jughead) and Lili Reinhart (Betty) are now a real-life couple, the actress all-but-confirmed the speculation in a sweet birthday note to her costar, who 鈥 along with his twin brother Dylan 鈥 turned 25 on Friday.

鈥淭o the man who has showed me more beautiful places in this past year than I have ever seen in my whole life. Happy birthday, Cole. Thank you for all of the adventures and here鈥檚 to many more,鈥 Reinhart captioned a shot of her rumored beau on Instagram.

While the two have yet to confirm their romance 鈥 and likely won鈥檛, after Sprouse told Elle in April that he is 鈥渘ever ever going to talk about my private life with the public sphere鈥 鈥 People reported some possibly telling behavior during their appearance at San Diego Comic-Con in July. First, Reinhart was spotted wearing Sprouse鈥檚 maroon blazer, and the the two were seen 鈥渃anoodling, holding hands, and kissing.鈥

Riverdale's Cole Sprouse and Lili Reinhart reportedly dating

Later that month, E! News reported that the couple took in a showing of Baby Driver at a Vancouver theater with the actress鈥 mom and sister. Although there was no PDA, Sprouse reportedly sat next to Reinhart and the two whispered and laughed together throughout the showing.

Even before July, though, fans were on high alert for an announcement from the two. Sprouse raised suspicion of a romance after he posted two gorgeous Instagram snaps of Reinhart, one in March and one in April.

Whether they鈥檙e dating or just good friends, we are totally Team Bughead.

Who is your favorite costar couple? Tell us @BritandCo!

(photo via Mike Coppola/Getty Images)