EVER since it was revealed that Penelope Featherington was Lady Whistledown, Bridgerton fans have been wondering how long she can keep the secret.
In season three of the Netflix series she begins a relationship with Colin Bridgerton, with viewers' wondering if he will find out the truth.
When does Colin Bridgerton find out Penelope is Lady Whistledown?
WARNING: Contains major spoilers from Bridgerton season three part two
In Bridgerton season three part two, Colin finally finds out that his fiancee Penelope Featherington is in fact Lady Whistledown.
The only other person who knows the identity of the gossip columnist is Penelope's former BFF Eloise Bridgerton - Colin's sister.
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But after seeing his fiancee acting suspiciously when Queen Charlotte starts to point the finger at who the ghost writer could be, Colin follows her.
This is where he sees Penelope handing over her gossip column to a local printer and he then knows at once that his wife-to-be is Lady Whistledown.
What happens when Penelope tells Colin she is Lady Whistledown?
Colin reacts very badly to Penelope being Lady Whistledown, mainly because of things that she has printed about his family.
The bride-to-be looks shocked and asks him if he will still marry her.
Colin claims he will "honour" his commitment, as he made a promise and also because they had been intimate together.
He later begs Penelope to stop being Lady Whistledown, but she admits she "isn't sure" if she can let it go.
Does Colin Bridgerton marry Penelope Featherington?
Despite all of the above happening the night before their wedding, the couple still get married.
At first they seem happy and dance together at their wedding breakfast.
However things take a turn when Queen Charlotte accuses one of the Bridgerton family of being Lady Whistledown.
Colin begs Penelope once more to stop writing the column, but when she refuses things go from bad to worst for the newlyweds.
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Does Penelope come out as Lady Whistledown?
In the final part of the last episode of season three, Penelope is finally unmasked as Lady Whistledown.
It comes during a ball that she hosts for her two sisters.
During the party Queen Charlotte - who has been hunting Whistedown for years - storms in claiming that the famous gossip columnist is in the room.
The monarch then reveals that she has worked out that Penelope is Lady Whistledown.
Pen then steps forward and admits the whole thing.
The series ends with her getting her own column in a newspaper with her real name printed on it.
Fans were thrilled to see that Penelope and Colin live happy ever after, with a new baby as well.
Who plays Colin Bridgerton and Penelope Featherington?
Nicola Coughlan plays the role of Penelope Featherington AKA Lady Whistledown.
The Irish star shot to fame on the critically acclaimed Derry Girls
Speaking to People about starring in Bridgerton, actress Nicola said: “I always look at the three seasons like this.
"I think season one was about passion, season two was about longing and season three, I think it’s romance all the way. It’s just so romantic.”
She added: “There were a lot of moments on set where we filmed something, and we’d turn around, and everyone was sort of clutching their chest being like, ‘Oh my God.’ It was that kind of love.”
Luke Newton plays Penelope's new husband Colin Bridgerton.
The actor made his TV acting debut in 2010, portraying Luke Attwood in the BBC Two teen series The Cut.
He has since gone on to appear in the BBC soap Doctors as Sam Hern, and in the Disney Channel series The Lodge as Ben Evans.
How to watch Bridgerton
All three series of Bridgerton, plus the Queen Charlotte spin-off show, are available to watch right now on Netflix.
Season three was released in two parts, with the first on May 16, 2024, and the second on June 13, 2024.
Bridgerton has been a huge ratings success for Netflix and is one the most streamed shows on their platform.