"Cobra Kai" stars Tanner Buchanan and Mary Mouser debuted their relationship on the red carpet for the Season Six, Part Three premiere of the Netflix show Feb. 12. Their hard-launch at the Los Angeles event doubled as an engagement announcement when they flashed their left hands,

There’s an engagement at the Dojo. While promoting the final episodes of Netflix’s Cobra Kai, stars Tanner Buchanan, 26, and Mary Mouser, 28, not only made their debut as a couple at the red carpet premiere for Season 6,