Jaime Winstone and Alfie Allen - a London celebrity couple if ever there was one - have rekindled their romance, over two years since they split because the "spark had gone".
A source told the Daily Star: "We always thought Alfie and Jaime would end up together again. It was more a question of when than if.
"They were young the first time around and big things were happening for both of them. They had a lot to deal with.
"Now they're both really serious about making a go of it. This time it's going to be for keeps."
Allen, 26, and 27-year-old Winstone reportedly split because the "spark had gone" from their romance.
Winstone was most recently dating photographer Tom Beard and has previously spoken about how her boyfriends are always wary of her father, hardman actor Ray Winstone.
She said: "It was sometimes hard for boyfriends to come and meet my dad. Some of them were nervous. It was when they would try to impress him that it became cringey. I mean, he's not this big tough guy at home, though you wouldn't want to get on the wrong side of him.
"That's why it's great with Tom - he's very confident and he doesn't feel like he needs to impress anyone. We're a good balance, and I think that's important - you don't want a situation where someone is dependent or feels insecure at the other person's success."
Game of Thrones actor Alfie is the younger brother of pop star Lily Allen.