Katie Price finally has something to smile about - but not because her own fortunes have turned.

Instead the mum-of-five is reportedly pleased that her arch nemesis Jane Pountney has finally split from her husband.

Derrick Pountney initially vowed to stay with his wife after she was outed for having an affair with Katie's now estranged husband Kieran Hayler in 2014.

But now they have split and Katie believes Jane heartbreak is "karma" after she tore her third marriage apart.

A source told The Sun : "Katie laughed her head off when the news got out and said it’s karma."

Katie Price was reportedly delighted to hear Jane Pountney finally split from her husband (
Image:
WENN.com)
Katie Price and Derrick Poutney (
Image:
WENN)

The source continued: "She knew about it a while ago and feels bad for Derek but says she’s over the moon that the whole world knows and Jane’s finally had a taste of her medicine."

"She will never forgive her and said she hopes Jane is going through hell just like she did.”

Their split comes as Katie has hit rock bottom - she has five days left to beat bankruptcy, is being investigated for drink-driving and has been in and out of rehab for alcohol addiction.

Her downward spiral seems to have begun four years ago with Jane and Kieran's affair which went on for at least seven months and saw them having unprotected sex all over Katie's home.

Katie Price and Jane Pountney, right (
Image:
Twitter/@MissKatiePrice)

They were only caught out when Katie - at that point five months pregnant with Kieran's daughter Bunny - caught them kissing and fondling on a sunbed while they were all on holiday in Cape Verde.

"I started walking towards the beach and in the distance, I could see these two silhouettes on the sun loungers. My heart was racing because I knew it was them," she previously said.

"Then there they were, kissing each other. I f***ing got her by the head, pulled her off of the sunbed and started whacking her, saying 'I f***ing knew it you f***ing whore. Slut!'"

atie decided to forgive her one-time stripper husband, citing the cause of his indiscretions as 'sex addiction' and instead placing the blame firmly at the feet of Jane -

Kieran later revealed how he and Jane had concealed their fling, despite openly having sex in the grounds of the marital home.

Katie Price and Kieran Hayler with Jane Pountney and her husband Derrick (
Image:
Splash News)
Katie and Jane were best friends for years (
Image:
FameFylnet)

"The routine was usually the same," the former stripper admitted.

"I would get into the passenger seat of Jane's car, she would jump on top of me and we would have sex. I didn't wear a condom because it added to the risk and my heart was always racing."

They were even having sex while Katie was in hospital struggling to give birth to son Jett, now five.

"They had their first sex in the bathroom upstairs in the villa. Later on, they had quick sex in my bed while I was lying in hospital alone," Katie once recalled.

"I felt so scared. All I wanted was for Kieran to visit me but he kept saying his shoulder was hurting and he needed to rest.

"I couldn't reach Kieran on his phone and kept texting Jane asking her to tell Kieran to come and visit but she was not passing the messages on."

She added: "Instead, she was telling him things like: 'You're just one of many. Katie will get rid of you soon.'"

Katie later forgave Kieran and even renewed her wedding vows with him - but wished a "painful death" on her former bestie.

Last year, Kieran was accused of another indiscretion - with their children's nanny - but the woman involved denied having sex with him.

Katie and Kieran are now separated and awaiting divorce.