Miguel said Mateen was attracted to Latinos but felt rejected by them

Miguel said Mateen recently discovered a Puerto Rican gay man he'd had a threesome with was HIV-positive, told Miguel he would 'make them pay'

But he 'refused to take any selfies', told him 'his wife knew he was gay'

A man claiming to be the Orlando shooter's lover says Omar Mateen was livid after discovering he'd had sex with an HIV-positive man.

The Hispanic gay man, identified only as Miguel, told Univision he met Omar Mateen on Grindr before they became 'friends with benefits', meeting up 20 times at a hotel in Orlando, Florida.

Miguel described Mateen as a confused gay man and a heavy drinker who was attracted to - but felt rejected by - Latinos.

He believes Mateen's massacre on Pulse nightclub's Latin Night was an attempt at 'revenge' after discovering that one of the two Puerto Rican gay men he'd had a threesome with was HIV-positive.

Speaking in fluent Spanish and broken English, Miguel said that despite tests coming up negative, Mateen feared not enough time had passed for an accurate result, and he wanted to 'make them pay'.

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'Tryst': The Hispanic gay man, identified only as Miguel, told Univision he met Omar Mateen on Grindr before they became 'friends with benefits', meeting up 20 times at a hotel. His identity has been disguised with a mask

'The thing that makes me want to tell the truth is that he didn’t do it for terrorism,' Miguel told Univision's Maria Elena Salinas. 'In my opinion he did it for revenge.'

Before the massacre, Miguel insists, Mateen seemed 'adorable' and 'sweet', adding that they often had oral sex and that Mateen 'loved to be cuddled... he loved to be embraced'.

Their first date, he said, was at a bar in Orlando called Parliament. 'It was like any other date,' he recounts.

Every other meeting was at the city's Ambassador hotel, where they met 15 to 20 times between October and December 2015.

Univision said a representative for the hotel confirmed that Omar Mateen was a familiar face, and that he stayed at the hotel at least 63 times last year.

The FBI has obtained CCTV footage from the hotel, Univision reports.

Miguel said Mateen lashed out when he once tried to take selfies in bed, forcing him to put his phone down.

The 29-year-old eventually revealed to him that he was married with one child, he says.

After an argument, he says, Mateen apologized to him - then told him his wife knew about his gay trysts.

Miguel claims Omar Mateen fostered a deep hatred for his own sexuality and for Puerto Rican gay men

Pulse is where Mateen could inflict the most damage against the people he felt rejected by, Miguel said

The 29-year-old eventually revealed to Miguel that he was married with one child, he says. After an argument, he says, Mateen apologized to him - then told him his wife (pictured) knew about his gay trysts

Asked if Mateen's father knew he was gay, Miguel said he couldn't be sure but he thought so.

During their casual relationship, Miguel says, Mateen spoke about Islam, describing it as 'a beautiful religion in which everyone is welcome - gays, trans, bisexuals, heteros, everyone.'

But it became clear that Mateen fostered a deep hatred for his own sexuality and for Puerto Rican gay men.

'He hated Puerto Rican gays for all the bad stuff they did,' Miguel said.

'Pulse is where he felt used, rejected,' he added.

'He was always there and he was there because he liked Latinos and he was attracted to dark skin. But sadly, from what he told me, he felt used.

'He felt anger, a lot of anger towards Puerto Ricans.'

Miguel said he has reported his entire story to the FBI, and is currently being interrogated by federal officers.

Univision disguised the man's identity with a prosthetic mask and altered the tone of his voice.

'First date': This bar, which now has an Orlando solidarity sign outside, is where Miguel says he met Mateen