WASHINGTON — (CNN) The day before Pope Francis met anti-gay county clerk Kim Davis in Washington last week, he held a private meeting with a longtime friend from Argentina who has been in a same-sex relationship for 19 years.

Yayo Grassi, an openly gay man, brought his partner, Iwan, as well several other friends to the Vatican Embassy on September 23 for a brief visit with the Pope. A video of the meeting shows Grassi and Francis greeting each other with a warm hug.

In an exclusive interview with CNN, Grassi declined to disclose details about the short visit, but said it was arranged personally by the Pope via email in the weeks ahead of Francis’ highly anticipated visit to the United States.

“Three weeks before the trip, he called me on the phone and said he would love to give me a hug,” Grassi said.

The meeting between Grassi and the Pope adds another intriguing twist to the strange aftermath of Francis’ first-ever trip to the United States. Since news broke on Tuesday of Francis’ meeting with Davis, conservatives have cheered the seemingly implicit endorsement, while liberals have questioned how much the Pope knew about her case.

In a statement on Friday, the Vatican said that the meeting with Davis was not intended as a show of support for her cause and said “the only real audience granted by the Pope at the nunciature (embassy) was with one of his former students and his family.”

“That was me,” Grassi said.

Grassi said that Pope Francis taught him in literature and psychology classes at Inmaculada Concepcion high school in Flores, Argentina, from 1964-1965.

Grassi said the Pope has long known that he is gay, but has never condemned his sexuality or his same-sex relationship. Grassi said he and Iwan (he declined to disclose his last name due to privacy concerns) also met Francis last year in Rome.

“He has never been judgmental,” Grassi said. “He has never said anything negative.”

“Obviously he is the pastor of the church and he has to follow the church’s teachings,” Grassi added. “But as a human being he understands all kinds of situations, and he is open to all kinds of people, including those with different sexual characteristics.”

Grassi said he believes the Pope was “misled” into meeting with Davis, who served six days in a Kentucky jail for refusing to issue marriage licenses to same-sex couples.

Davis’ lawyers had portrayed the papal meeting as an endorsement of her cause. After several days of questions and culture-war sparring, the Vatican said that was not the case.

“The Pope did not enter into the details of the situation of Mrs. Davis, and his meeting with her should not be considered a form of support of her position in all of its particular and complex aspects,” Vatican spokesman the Rev. Federico Lombardi said in a statement issued Friday morning.

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