Kit Harington has been hanging around Belfast a lot, which triggered a slew of conspiracy theories that his character Jon Snow is not really dead in "Game of Thrones."

Now, another photo of Kit Harington with former girlfriend Rose Leslie surfaced on social media which again fueled speculations that they might be back filming in "Game of Thrones."

In an Instagram post by user The Kyrbin, it did appear that Jon Snow and Rose Leslie are back together as they seemed to be cozying up while on an escalator. The caption read, "You know nothing Jon Snow. Yes, it's the Wildling and Jon Snow. Yes, they were holding hands #wow #gameofthrones #kirbyn."

One fan wrote, "My heart just broke a little but then again, they're a cute couple."

But a fan noted, "His hair is much longer now, and he's been in Belfast for a few days now already... So this is an old photo."

The on-and-off couple got back together in May last year after splitting the year prior. The two reportedly knew each other even before playing on-screen lovers in "Game of Thrones."

"They've been back on for about three months," an insider tells Us Weekly back in August 2014. "That said, it's casual right now and they're having fun. They're not moving in together or anything like that yet."

But Rose Leslie being back on "Game of Thrones" with Kit Harington is a long stretch being that her character, Ygritte, died in season 4. Jon Snow, meanwhile, died in the season 5 finale.

In January this year, Kit Harington talked to GQ magazine where he admitted that he has no ladylove at the moment.

"I'll never talk about any particular relationship I've been in," he said. "But I will say I'm single at the moment."

The "Game of Thrones" star went on to add, "Relationships as an actor are incredibly difficult. With someone who's not an actor, because they never get to see you; and with someone who is an actor, because you're ships in the night a lot of the time. I mean, ideally, if you keep acting in the film world, you're a travelling salesman."