LOS ANGELES — Kaley Cuoco of the "Big Bang Theory" fame is now engaged to her tennis player boyfriend, Ryan Sweeting, according to PEOPLE.



The couple made their red carpet debut at the 65th Annual Emmy Awards on Sunday, with the actress wearing an oxblood-colored dress by Vera Wang.



The 27-year-old actress shared a photo of the couple on Instagram and called Sweeting the "greatest date ever."



A source close to the actress told PEOPLE that Cuoco is very happy and "he (Sweeting) is an amazing guy."



"#emmyweekend greatest date ever @ryansweething," she wrote.



Sweeting, 26, later shared a sweet snapshot on his Instagram account writing, "A million people, all I see is her @normancook #emmys"



Prior to dating Sweeting, Cuoco briefly dated "Man of Steel" actor Henry Cavill. — SG