Rudy says she’s just a friend

Trump lawyer and former mayor Rudy Giuliani is vehemently denying reports that his separation from Judith Nathan was caused by an alleged affair with Dr. Maria Rosa Ryan, whom he insists is just a “friend.”

The pair has been linked on several occasions in recent months, including an alleged meet-up at a resort in New Hampshire the weekend before Giuliani’s separation from his wife of 15 years.

Giuliani said he knew the split was coming — but insisted it wasn’t because of any hankypanky with the married Ryan (photo).

“I think this occurred on March 29 and I was separated on April 2, so I had a pretty good inkling of it (the divorce)," he told the Daily News Tuesday.

According to Giuliani, that two-day visit was strictly business, despite reports that he and Ryan, who is married to a former Marine, retreated to the hotel’s Presidential Suite.

"They might have it confused with the private room we went into to have dinner at the restaurant," he said.

"There was no pleasure at all,” he said. “One of the nights I watched ‘The Godfather.’”

According to Giuliani, he booked the hotel’s presidential suite, but it wasn’t because he planned on hosting.

“It’s not that big in that hotel," he said. “That’s where I stay in many places when I go.”