President Trump‘s eldest son, 40, tweeted his outrage at the New York Daily News on Wednesday after one of its columnists wrote that Guilfoyle, 49, is “an otherwise brilliant woman” but “when it comes to picking men, though, she’d be better off picking grapes.” The column argued that Guilfoyle should be fired from her Fox News show The Five because of her reported romantic connection to the president’s son.
Now, things appear to be heating up between Trump Jr. and Guilfoyle, who according to Page Six started dating in April, after Trump Jr.’s estranged wife, Vanessa, filed for divorce in March.
And a source tells PEOPLE the pair were together again on Tuesday night at N.Y.C. restaurant Omar at Vaucluse, a spot they reportedly frequent.
In his tweet on Wednesday, Trump Jr. seemed to be suggesting that the grape-picking reference was racist due to Guilfoyle’s Puerto Rican heritage.
“How did this get past her editors at the @NYDailyNews? Or do they condone this kind of talk?” he wrote. “I guess hypocrisy, sexism & racist rhetoric are alive & well there.”
He then linked to a Breitbart News article alleging that the Daily News columnist, Linda Stasi, used a “racist stereotype” to make her point and was “telling a Puerto Rican woman to know her place, to go pick some grapes.”
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After facing some criticism on social media, Stasi apologized for the “misunderstanding” in a tweet, saying she “had no idea Kimberly Guilfoyle is half Puerto Rican” but adding that she was “surprised anyone would have assumed such a stereotype b/c someone is half-Latina.”
The line was also changed in the column from “picking grapes” to “picking lottery numbers.”
Trump Jr.’s rep at the Trump Organization did not immediately respond to PEOPLE’s request for comment.
Guilfoyle, who at one point was in talks to replace Sean Spicer as White House press secretary, has been a vocal supporter of President Trump and, by her own account, a family friend for more than a decade.