Singer's wet hair is the common denominator among her arguments with Kristen Taekman – and the latest spat resulted in a tossed glass at the new cast member's face.
"What are you, the Wicked Witch of the Hamptons?" Taekman asks in this exclusive clip of Tuesday's episode of The Real Housewives of New York City. "You gonna melt? I mean, what's up with you and your hair?"
In the clip, Singer decides to "sort of" apologize for the incident, causing the pair to revive the disagreement.
"How would you feel if I had to get stitches, how would you feel if I lost a tooth?" Taekman asks, clearly angry about her split lip.
"Horrible," Singer says. "So why did you throw water at me? I told you, 'Don’t throw water at me!'"
The Real Housewives of New York City airs Tuesdays (9 p.m. ET) on Bravo.