Millie Mackintosh 'spends the night with ex-boyfriend Hugo Taylor'... just weeks after splitting from husband Professor Green

They were rumoured to have grown close again after they were pictured embracing in Dubai less than two weeks ago.

And now Made In Chelsea exes Millie Mackintosh and Hugo Taylor have fuelled speculation they are dating again after he was pictured spending the night at her London home.

Millie, 26, and Hugo, 29, were photographed arriving at her West London pad together on Sunday, before he was seen leaving the following morning, according to The Sun.

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Back on? Millie Mackintosh and Hugo Taylor, pictured in 2011, are rumoured to be dating again

Back on? Millie Mackintosh and Hugo Taylor, pictured in 2011, are rumoured to be dating again

The pair, who originally dated for around six months in 2011, have apparently been getting reacquainted following the breakdown of the fashionista's marriage to Professor Green, which was announced back in February.

An onlooker told The Sun: 'They've been spending a lot of time with each other recently, really enjoying each others company and after a day out on Sunday they decided to go back to Millie's pad. They had a great night together and it it looks like they are officially back on after all these years apart.'

The former make-up artist's apparent romantic reunion with Hugo comes amidst claims her estranged husband insisted he's happy for her to 'move on'.

Cheers to me! Millie is currently on her sixth holiday of the year in Verona, Italy

Cheers to me! Millie is currently on her sixth holiday of the year in Verona, Italy

A source told MailOnline that Professor Green - real name Stephen Manderson -doesn't want Millie to hold back.

They said: 'Stephen feels that who Millie sees is none of his business now as they're not together anymore.

'He's happy for her to move on.'

Millie and Hugo were first pictured kissing and hugging at a table during British Polo Day in Dubai in 25 March.

Split: Millie and rapper husband Professor Green announced they had separated after two and a half years of marriage in February

Split: Millie and rapper husband Professor Green announced they had separated after two and a half years of marriage in February

They originally dated five years ago during Series 1 and 2 of Made In Chelsea, with Millie accusing Hugo and her close friend Rosie Fortescue for kissing while they were dating.

Soon after splitting from Hugo, Millie met Professor Green in November 2011, before they announced their engagement in March 2013 and married that September.

In an interview shortly before she met Prof Green, Millie spoke fondly of Hugo: 'I loved him - those feelings don’t disappear – but I just always have to remind myself why we’re not together.

'I do think that, for the rest of my life, every time I see him, I’ll get that feeling in my stomach. I don’t think I could ever not get that butterfly feeling.'

Classic: Millie throwing a cocktail over Hugo in Series 2 after finding out he had cheated on her is an iconic Made In Chelsea moment

Classic: Millie throwing a cocktail over Hugo in Series 2 after finding out he had cheated on her is an iconic Made In Chelsea moment

Stormy: The pair had a turbulent six month romance on the reality show before parting ways

Stormy: The pair had a turbulent six month romance on the reality show before parting ways

Millie and Hugo managed to salvage a friendship following their split, with the former getting to know his next girlfriend Natalie Joel, who he dated on and off for four years before parting ways in late 2015.

Meanwhile, Millie is now on her sixth holiday of the year after jetting to Verona, Italy.

She and Prof Green announced they had split after two and a half years of marriage in February.  

In a statement at the time, they said: 'It is with sadness and regret that we confirm our separation.

'It is a mutual decision, we still care deeply about each other and would like it to be known that it is on amicable terms and we wish each other well.' 

MailOnline has contacted Millie and Hugo's representatives for comment.

Moving on: Hugo dated Natalie Joel on and off for four years before parting ways in late 2015

Moving on: Hugo dated Natalie Joel on and off for four years before parting ways in late 2015

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