We are less than two months removed from Juan Soto striding up to the plate at Yankee Stadium and being bombarded by boos — less than two months from the bombastic narrative that he hated playing for his new team and that his lack of early production meant his historic contract was a bust.

But things move fast in New York, especially when it comes to baseball, and rarely has it been more evident than Soto’s performance in the Mets' 6-5 win over the Yankees at Citi Field on Friday.

Where there once were  boos, there was a standing ovation (the Flushing faithful did that in his first at-bat, drowning out the Bronx jeers). And where there once was  failure — Soto was 1-for-10 in the three-game series against the Yankees in May — there  instead was catharsis.

The injury-ravaged Mets, forced to spot-start Justin Hagenman, were down 2-0 off game-opening homers by Jasson Dominguez and Aaron Judge when Soto made his way to the plate with Brandon Nimmo standing on second. And Soto, coming off one of the best Junes in franchise history, kept the train going, blasting Marcus Stroman’s 1-and-2 cutter 393 feet the opposite way to tie a game the Mets would  win on Jeff McNeil’s two-out, two-run homer in the seventh.

“Juan responded right away — just getting the momentum right back,” manager Carlos Mendoza said. “That was a setting-the-tone moment — if they punch, we’re going to punch back. Here we are . . . back-to-back [home runs] for them and then our guy hits it.

“It’s game on.”

Soto, who also doubled and scored on Pete Alonso's single in the third to give the Mets a 3-2 lead, went 3-for-4 and has a team-leading 21 homers. He also was named National League player of the month, the first time he’s earned the award. In 27 games in June, he had a .322/.474/.722 slash line with 25 runs, three doubles, 11 homers, 20 RBIs and 25 walks, joining Darryl Strawberry as the only Mets  to collect at least 10 home runs and at least 20 walks in a calendar month.

And though there’s no metric on the psychological boost that comes courtesy of his contributions, Hagenman touched on that too. After Soto tied it up, Hagenman, making his first-major league start, mostly settled down: He allowed four runs and five hits with no walks and five strikeouts in 4 1/3 innings.

“The fact that [we] come right back is huge,” Hagenman said. “It gives you the confidence to keep going . . . stop it here and you’re still in the game. You still have a chance to win.”

Soto, as he often is after games, was even-keeled. It felt good to give Hagenman (and the rest of the team) a clean slate, he said. And certainly, after the first few months he had, he knows the value of shifting the narrative.

“Any time you come through for the team, it’s always great,” he said. “I just feel good right now. I’m seeing the ball really well. I feel like I’m trying to [get my] chances when I swing my bat and trying to do damage every single time and try to help the team win the game.”

Oh, and did he notice the standing ovation?

“No,” he replied dryly. And then, a smirk. Yes, yes he did.

Citi Field "was great — great vibes," he said. "The fans showed up today and showed the love like they've been doing since day one, so really happy and excited to play for those fans."

What a difference (not even) two months can make.

Jose Butto was placed on the 15-day injured list with an undisclosed illness, retroactive to July 1, “but we don’t anticipate this being long-term,” Mendoza said. The Mets hope to have him back right after the All-Star break . . . Tylor Megill (elbow sprain) will begin playing catch Saturday, about three weeks after his initial diagnosis . . . Kodai Senga (hamstring strain) will commence his rehab assignment with Double-A Binghamton. He’ll throw  60 to 65 pitches . . . Jesse Winker (oblique) had a scheduled off day Friday but will continue his rehab assignment Saturday and DH with Binghamton. He’s 2-for-6 with a home run in two games . . . The Mets signed lefthanded reliever Colin Poche to a minor-league contract after designating him for assignment last week.