Kit and Rose are said to have started dating since 2012, having met on the set of the HBO show. Harington’s character 'Jon Snow' shared an on-screen romance with Leslie’s character 'Ygritte' before the actor left the show in 2014.
The Sun now reports that the couple are engaged, with a source telling the paper:
“They’re yet to set a date, but told friends and family last week that they’ve got engaged. Kit’s known for ages he’s wanted to marry Rose but he wanted them to get a house and settle down a bit first. After moving in together in January he felt it was the right time to take the next step.”