Are Harry Styles and English model Cara Delevingne dating again? That's what gossips are suggesting, even saying that the One Direction heartthrob "doesn't want to let her go this time"!

Hazza, 19, and the 21-year-old Victoria's Secret model dated briefly last year, just prior to his much-publicized -- and ultimately disastrous -- romance with Taylor Swift.

In sharp contrast to how Haylor's love life was portrayed in the media, Harry and Cara are said to be trying to keep their rekindled relationship low key. "They have been trying to go on some 'normal' dates," an insider dishes. "He really wants to get to know her properly without a lot of attention."

One of those "normal dates"? Catching a performance of 'The Book of Mormon' in London just last week. Someone snapped a photo of the two sitting in the audience together at the show. They've also reportedly gone out on two dinner dates in recent days.

Of course, when two celebrities get together -- and Harry and Cara are two of the U.K.'s biggest stars -- things rarely progress normally. They're trying to buck that trend, according to the insider: "Cara wants to take things slowly. Harry thinks she is the most interesting and level-headed girl in the industry and it seems he doesn't want to let her go this time."

Breathe, Directioners, breathe ...