As the pair's marriage hangs in the balance, Nicola has been taking to social media to share her heartache with her fans.
But whilst McLean has been open about the fact all is not well in the relationship, Williams has been relatively restrained in posting about the issue publicly.
Taking to his Instagram page, Tom posted a picture of himself with a bottle of Patron tequila, miming drying his eyes.
And after noticing the post this morning, Nicola posted the picture to her feed, accusing her husband of being heartless.
'Is this aimed at me @mrtomwilliams #heartless' she wrote.
Earlier on Monday morning Nicola admitted she was 'still in bed having a twitter stalk' as her mum helped her out with the kids.
Husband Tom has been spending large chunks of time away from the family, as he works as a concierge in Las Vegas.
However, when he didn't return from the American city in July, Nicola began tweeting him to get his attention.
The former glamour model has slammed the father-of-two for his lack of responsibility, as well as hinting that he has been unfaithful while abroad.
On Sunday she tweeted: 'My dog won't stop humping!! people other dogs he just isn't fussy… Bit like someone else I no.'
And it appears Twitter users are rallying roung the 32-year-old mum, with many telling her she's better off without the former footballer.