Reg, 35, said that although he and Amy had not set a date, they both knew that they were destined to be together.
He told British newspaper The Sunday Times: 'Absolutely, we had talked about getting married.
'It wasn't planned as in this date or that date, but it was a topic of conversation and had been for some time.'
Traviss added that he found the unexpected loss of the Back to Black hitmaker 'surreal'.
He added: 'What felt surreal was not the cameras and the craziness but losing somebody, just like that. One minute I was speaking to her, the next she was gone.
'You might say we were halfway through a conversation in our life together and then, suddenly, she disappeared.'