The Crosstown Classic was heating up with the weather this weekend.

Cubs stud outfielder Pete Crow-Armstrong told a female fan “You suck my f–king d–k bitch” in a shocking scene Sunday after she seemingly told him “you suck” in the fifth inning.

Crow-Armstrong later defended his comments after the 9-8 road loss in 10 innings at Rate Field.

Warning: Graphic language

“Some lady decided to start talking s–t and I felt the need to say it back,” Crow-Armstrong told ESPN.

The viral back-and-forth happened after Crow-Armstrong, perhaps the best defensive center fielder in MLB, could not corral a two-run double at the wall in the fifth inning that tied the game at 4-4.

Crow-Armstrong sat down after he missed the catch, and a female White Sox fan let him hear it.

“You suck,” the fan appeared to yell while flashing two thumbs down to Crow-Armstrong as he stood up.

An X user, Katie, claimed she made the remark, and said in a since-deleted X post she was “Just trying to celebrate my engagement party in the patio.”

Katie has since made her X account private after the viral exchange.

“Our goal the entire time we planned this was we knew PCA was in center field and we’re like, ‘We’re going to heckle him at some point,'” Katie told the Chicago Sun-Times.

Crow-Armstrong did not take that remark kindly, jawing at her before eventually turning his back to the fan and walking away.

Hearing heckling for not making a defensive play is rare for Crow-Armstrong, as he is MLB’s leader in defensive runs saved and makes wild plays seemingly every day.

The Cubs and White Sox had a crazy back-and-forth game Sunday, as the White Sox scored three in the bottom of the eighth to take the lead followed by a three-spot from the Cubs in the ninth to tie the game.

The White Sox scored two in the 10th after the Cubs tallied one in the top of the inning to win the series in one of the best games of the year.

Despite the series setbacks, the Cubs (29-18) are in first place in the NL Central division while the White Sox (24-22) continue to be one of baseball’s biggest surprises.