Michael Costello has opened up about having "thoughts of suicide" after Chrissy Teigen allegedly bullied him.

The Project Runway star and designer accused Chrissy Teigen of a campaign to get him blacklisted from the industry.

He claimed it left him feeling not only suicidal but also, "traumatised" and "depressed."

Costello's revelations come as Teigen faces accusations of bullying many other celebrities including Courtney Stodden, Lindsey Lohan, and Farrah Abraham.

Stodden claims that Teigen constantly bullied them, both publicly, by tagging them in abusive tweets and privately, by sending them vicious DMs.

Costello opened up about the situation and his feeling in an emotional Instagram post.

He claimed that it began when Teigen mistakenly thought he posted something racist back in 2014.

Despite trying to convince Teigen the racism claims were untrue, she continued with the accusations. At one point, Teigen reportedly even told Costello that his "career was over" and all his "doors will be shut from there on."

Costello included screenshots of alleged messages he had received from Teigen in which she wrote "racist people like you deserve to suffer and die."

Costello revealed that he was impacted massively as a result of the Teigen who, along with with stylist Monica Rose, convinced brands and companies to not work with him.

He also detailed about the suffering he has felt due to Teigen's claims. Costello explained that sadly, he is opening up about it now to help to himself "heal" after suffering from depression and suicidal thoughts.

Just last week, he told loved ones he thought taking his own life "would be the best way out."

Costello's allegations of Teigen's alleged bullying come as she issued an apology for her past behavior in which she described herself as previously being a "troll."

You can read Costello's full post here.