"I think it's a very easy storyline for everyone in the media world," he added. "I think as soon as everyone found out we were doing this, it was like, 'Headlines for days! Thank you so much, Nathan and Ariana, that is so kind of you!'"
The two dated briefly from August to December 2013, and since that time, Sykes says he's "experienced so much life experience in those years [that] it does feel like forever ago."
The 22-year-old singer also implied that it wasn't too tough to convince his ex, also 22, to record with him. "I spoke to [Ariana] and I was like, 'It's only as awkward as everyone else makes it,'" Sykes said. "If we don't make it awkward, then at the end of the day, after a couple of weeks, it's not going to be awkward anymore."
However, the lyrics in "Over and Over Again" are pretty romantic. "I won't leave you/ Always be true/ One plus one, two for life/ Over and over again," Sykes sings.
Sykes is currently single but told ET that he's not necessarily ready to mingle. "The amount of traveling I do, it would be unfair," he said of starting a relationship. "I'm not desperately looking for a relationship. It's one of those things if it happens it happens and if it doesn't, I'm very happy being single."
When Sykes is ready for a relationship, he does have a type of person in mind. "Manners, generally a nice person, and a good sense of humor as well," he described his perfect woman. "They've got to appreciate my sense of humor because it's quite unique."