For a couple that have strived for privacy during their three-year relationship, Kristen Stewart and Robert Pattinson’s love affair now couldn’t be any more public.

The Twilight lovers' relationship has been thrown into turmoil after Kristen, 22, admitted to having an affair with married film director Rupert Sanders, 42, after pictures of the pair embroiled in a passionate clinch were made public by US Weekly magazine.

Although Robert ‘R-Patz’ has remained resolutely silent since the cheating rumours broke, the (usually) viciously private Kristen issued a revealing statement saying how sorry she was.

"I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected. This momentary indiscretion has jeopardised the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry."

Are Kristen’s loud words be enough to save her and Rob's relationship?

Author of Sex Academy and relationship expert Dr Pam Spurr, doesn’t think so.

“The problem with a release like Kristen's is she has ignored the wisdom of the saying, ‘The least said the soonest mended,’” Dr Spurr told HuffPost Lifestyle.

“The ideal would've been a very brief statement simply asking for ‘privacy while she made amends for her indiscretion’.

“Her choice words at the end of the statement ‘I love him, I love him, I'm so sorry,’ are melodramatic. Yes, this is a dramatic situation but words are incredibly powerful and can whip up a sense that the flames of the fire are being fanned even more.

“What she was hoping to do was make a most humble apology but instead those words drive the nail further into Robert's undeniable heartache and wounded male pride."

Scroll down to discover other 'sorry' celebrities... (PICTURES)

Whereas relationship expert, James Preece, aka The Dating Guru, believes a public “I’m sorry” was the right thing for Kristen to do.

“An apology is the most important thing after an affair, followed by an explanation. You'll be judged by everyone that knows you both, so if they are aware of the infidelity then you need to make a very public apology.”

If you have been unfaithful to your partner, is it best to throw yourself at their mercy and announce it to friends and family, or should you deal with the situation behind closed doors?

Denise Knowles, relationship counselor from Relate, believes that the best way to salvage your relationship following infidelity is to deal with the situation privately.

“Most couples who are going through a cheating dilemma and who keep it as private as possible, are the ones who are better at succeeding if they choose to give their relationship another go,” Knowles told HuffPost Lifestyle.

“While it’s fantastic to have the support of your friends and close family, of course, everyone will have an opinion on the matter whilst you’re trying to decide on what to do.

“Therefore, if you decide to stay together, those opinions, such as, 'I knew he wasn’t right for you', will stick. These negative comments will linger and put strain on your relationship.

That’s why during a relationship crisis, it’s best to communicate with each other and make a decision as a couple, without any outside influence, says Knowles.

“If you decide to separate, you have made the decision yourself," adds Knowles.

What it is the best way to apologise to your partner if you’ve been unfaithful? Counselor Denise Knowles says:

  • First and foremost, take responsibility. It’s no good blaming your partner for ‘neglecting you’ in a bid to explain why you did what you did. Face up to your actions.
  • Be sure in your mind that the affair is over.
  • Make sure you’re sorry because you’ve had an affair, not because you’ve been caught out.
  • Remember that it’s not as simple as saying sorry. Actions are just as important as words. Give your partner time to adjust, space and time to heal. Do not expect your partner to draw a line under the whole ordeal and forget about it overnight.
  • Recognise that this is a ‘grieving’ process for both of you. Respect this if your partner becomes angry or resentful.

Kristen isn't the first celebrity to issue a public, grovelling apology...

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  • Kristen Stewart

    Twilight actress Kristen Stewart issued an apology to co=star and boyfriend of three years, Robert Pattinson, after she was caught cheating with married man, Rupert Sanders. <strong>"I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected. 'This momentary indiscretion has jeopardised the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry."</strong> <em>HuffPost Lifestyle looks at other grovelling celebrities who have publicly apologied after their wrong-doing. </em>

  • Tiger Woods

    After golfer <strong>Tiger Woods</strong> was busted over his countless affairs with women, he issued this grovelling apology to his long suffering wife, Elin Nordengren. <strong>"I have let my family down and I regret those transgressions with all of my heart. I convinced myself that normal rules didn't apply... I ask you to one day find room in your heart to believe in me again." </strong>

  • Mark Owen

    Take That singer <strong>Mark Owen</strong> shocked the world when he admitted to having at least 10 affairs behind his wife, Emma Ferguson, back. After the news broke, he publicly apologised for his actions, saying: <strong>"I'm so deeply sorry for the pain my actions have caused my family and friends. "I'd like to ask the media to please respect the privacy of my wife and children during this difficult time."</strong>

  • David Letterman

    Prime time TV host, <strong>David Letterman</strong>, publicly apologised to his wife Regina Lasko live on his show after he confessed that had series of affairs with female members of his staff. <strong>"My wife has been horribly hurt by my behaviour, and when something happens like that, if you hurt a person and it's your responsibility, you try to fix it... so let me tell you folks, I got my work cut out for me." </strong>

  • Jesse James

    Shortly after his then-wife, Sandra Bullock, won an Oscar, it was revealed that Jesse James had been having an affair throughout their marriage. He later issued a long apology to Sandra and his children from a previous relationship. <strong>"There is only one person to blame for this whole situation, and that is me. It's because of my poor judgment that I deserve everything bad that is coming my way. "This has caused my wife and kids pain and embarrassment beyond comprehension and I am extremely saddened to have brought this on them. I am truly very sorry for the grief I have caused them. I hope one day they can find it in their hearts to forgive me."</strong>

  • Vernon Kay

    The squeaky clean family man of TV, <strong>Vernon Kay</strong>, issued a grovelling apology after he was caught 'sexting'* five other women who were not his wife, fellow presenter, Tess Daly. <strong>"You may or may not be aware that, because of some foolish and stupid decisions I've made, I've disappointed and let down a lot of people. To my family and everybody else, I am very sorry."</strong> <em>*Sexting: sending sexually suggestive text messages.</em>

  • Jude Law

    Actor Jude Law was left red faced after he admitted to cheating on his then-fiancée, Sienna Miller, with his children's Nanny. After the allegations were made, Jude said in a statement: <strong>"I am deeply ashamed and upset that I've hurt Sienna and the people most close to us. I want to publicly apologise to Sienna and our respective families for the pain that I have caused."</strong>

  • Chris Brown

    Following his awful <a href="http://www.guardian.co.uk/music/2009/feb/10/rihanna-victim-chris-brown-assault" target="_hplink">assault on singer Rhianna</a>, <strong>Chris Brown</strong> issued an official apology to both her, and his fans. <strong>"I've told Rihanna countless times and I'm telling you today, I'm truly, truly sorry that I wasn't able to handle the situation both differently and better."</strong>

  • Bill Clinton

    Bill Clinton had a lot to be sorry for in 1998 after he publicly denied "having sexual relations with Monica Lewinsky" (his intern at the time) but later admitting that these rumours were in fact, true. This later led to an impeachment charge against him and in front of a grand jury, he said the following: <strong>"I know that my public comments and my silence about this matter gave a false impression. I misled people, including even my wife. I deeply regret that." </strong>