I believe they exchanged love vows but were not yet married. In the story she was the daughter of a count, a noble woman by birth; Navarre was the captain of the guards, a man of honour (check the scene where he speaks to the Mouse about his sword and the deep signficance of each stone on it). Given all this I imagine Navarre wouldn't dream of sleeping with Isabeau without marriage first. Yes, the fled Aquila together to escape the Bishop's wrath and no doubt hoping to get married later on. watching the film they don't strike me as two people who have been sleeping together.

I think they were secretly engage. And they were on their secret wedding ceremony when the Bishop curse them.

Navarre is
only
a wolf, not a werewolf.

Secret betrothal makes the most sense. It covers "vows" but not yet "marriage."

I've always interpreted that they secretly got married, when Imperious told Mouse the story of how Navarre & Isabeau became cursed to transform into a hawk & a werewolf.

Remember this film takes place in the 14th century, "the rules" were different then. But to answer the question, there is never a mention of marriage in the story.

I think injecting that kind of relationship into the film downgrades the level of unrequited passion it's trying to show.
Lovesr as in "they were in love' but never together long enough to be sexually intimate.

In a medieval context "lovers" = "two people who love each other", and has no implication that they are or have been sleeping together.

Imperious said The Bishop damned the "lovers." To me, that sounds like they weren't married and were sleeping together.
Never underestimate the importance of hope and a good sense of humor.

yes, they were married. you find it in the book, and there is a direct reference to the marriage somewhere in the moviei dont recall where, my copy is a tape (waaaa, gotta get a DVD ASAP!).
~~
~~
"Ooh!Pass the popcorn! This is gonna be good!"

ve a more romantic vision of Middle Ages,that Amour Courtuois-style affair..

I wasn't going on the book, just the movie. I'm also not trying to suggest that they definitely did sleep together before the curse. I just think chastity wasn't an issue that was addressed in the movie, unlike in Twilight, where it is a main theme. It was never mentioned, so maybe they did and maybe they didn't.

I dont think theyll have time to sleep,they were chased by the whole Bishops armyread the book..and this is like a fairy tale,so there is no sex at all,less without marriage!

They couldn't touch after the bishop made the pact with the devil, but Imperious says that they fled from Aquila the bishop followed "never more than an hour behind." Then later in the story, Imperious says that he made the pact. So it seemed to me that Isabeau and Navarre were travelling together before the curse was cast and were therefore sleeping in the same quarters.

They cant touch each other,that was the reason of their anguish..and I suppose she was a very virtuous woman..

I don't believe that they were married, but that certainly doesn't mean they didn't sleep together. Imperius says that they fled from Aquilla, so they were travelling together, and presumably sleeping in the same quarters (if for no other reason than for her protection). It seems likely that they slept together.

The characters never address or speak of each other as husband and wife.
A religious betrothal ceremony was common in medieval times. It was taken very seriously and actually required a divorce to break. A secret betrothal would fit in well with Father Imperius's narrative.
cagordon22's comments are very insightful.

I don't think they were married, either. People made all sorts of very serious vows back then, and vowing to love one another exclusively was a common one.
Plus, from the acting standpoint, Navarre and Isabeau certainly seem to be grieving not just the loss of each other but also all that their relationship COULD have been, including marriage and the implied physical intimacy included therein - they don't IMO seem to be missing what they had once known.
In other words - their passion for one another seemed to be unrequited, to put it delicately.
It's well known in theatre that the hottest chemistry blazes between two characters who have not yet consummated their love. This is the way their love seems to be - not yet physically consummated.

I think that they both told Imperious that they were in love during confession. Later, when the Bishop was hearing confessions from the clergy Imperious was drunk and blabbed what he'd heard from Navarre and Isabeau, which is a major no-no. Priests aren't supposed to repeat what they hear in confession.
Anyway, I don't think they were married when the bishop cursed them.
They knew that the bishop wanted Isabeau, I'll bet they were planning to have Imperious marry them in a very private ceremony and leave town right promptly for a looong honeymoon someplace far far away, before things went all haywire on them