The former glamour model posted a revealing message to her page late on Sunday night, that read: 'Never push a loyal person to the point where they no longer give a damn.'
And on Monday morning, Nicola appeared to confirm that things had hit rock bottom, as she tweeted: 'Can't believe the conversation I had today' followed by a crying emoticon and broken heart.
Supporters of the star have been reaching out to McLean, with one writing: 'Any man that does not come home to his wife and kids does not deserve any of you..head up lady you are worth more than that xx.'
Nicola revealed things might not be well in her marriage after she publicly tweeted to her husband Tom to come home from Las Vegas, where he works as a concierge.
NICOLA MCLEAN 'SUICIDAL' FOLLOWING MARRIAGE DRAMA
NICOLA MCLEAN OPENS UP ABOUT TOM WILLIAMS WILD PARTYING UNTIL 8AM
Later, footage of Tom allegedly dancing and flirting with a mystery woman emerged, causing Nicola to be hospitalised with stress.
And it appears the pair haven't managed to put their rift behind them, with Nicola continuing to tweet about her heartache as the weeks go on.