Harry Styles and Taylor Swift dated from October 2012 to Jan 2013 and until recently, neither of them have really spoken about it.
But, recently Harry has broken his silence on what it was like dating Taylor, describing it as "hard" and a "learning experience".
Styles told Rolling Stone that he didn't expect the reaction to be so intense when they started dating.
The pair met at an awards show and later were caught walking through Central Park in New York City on their second date. They broke up a month later after a holiday together in the Caribbean.
"When I see photos from that day," he said, "I think: Relationships are hard, at any age. And adding in that you don't really understand exactly how it works when you're 18, trying to navigate all that stuff didn't make it easier.
"I mean, you're a little bit awkward to begin with. You're on a date with someone you really like. It should be that simple, right? It was a learning experience for sure. But at the heart of it - I just wanted it to be a normal date."
Photo: Getty Images
Taylor has a tendency to write songs about former boyfriends and is rumoured to have written Out of the Woods and Style about...Styles...
"I don't know if they are about me or not," Styles said. "But the issue is she's so good, they're bloody everywhere.
"I write from my experiences; everyone does that. I'm lucky if everything [we went through] helped create those songs. That's what hits your heart. That's the stuff that's hardest to say, and it's the stuff I talk least about. That's the part that's about the two people. I'm never going to tell anybody everything."
Asked if there was anything he wanted to say to the 27-year-old singer now, he said: "Certain things don't work out. There's a lot of things that can be right, and it's still wrong. In writing songs about stuff like that, I like tipping a hat to the time together.
"You're celebrating the fact it was powerful and made you feel something, rather than 'this didn't work out, and that's bad," he said. "And if you run into that person, maybe it's awkward, maybe you have to get drunk ... but you shared something. Meeting someone new, sharing those experiences, it's the best shit ever. So thank you."
Did Styles ever tell Swift he admired the songs? "Yes and no. She doesn't need me to tell her they're great," he admits. "They're great songs...It's the most amazing unspoken dialogue ever."