“Somebody’s sexuality is their own business. But I think it’s the whole, if you like, history of the DUP.
“They were opposed to gay marriage, they’ve always had that angle, that bigotry towards members of the gay community and that’s where the shock came from, that there could be such a double standard.
“I found it incredible,” he said.
That same year Donaldson told the Northern Ireland Assembly: “Judaism, Islam and Christianity all teach that homosexual practice is sinful… it is a sincerely held view by Christians and people of other faiths.”
DUP Communities Minister Gordon Lyons said he had no awareness of the double life Donaldson was apparently leading.
He said the shock at revelations about Donaldson’s life over the past couple of years was down to the former DUP leader being “a duplicitous individual”.
“It was clearly wrong what took place but it was not something that anyone was really aware of and that’s why there was so much shock at the time.
“We as a party will want to move on and move past this, however for the victims that’s going to take a lot longer and they are at the centre of all of this.”
Spotlight: Politician, Predator & Paedophile is on One Northern Ireland on Friday 26 June at 21:00. It will also be available on the iPlayer.