He said: "She definitely had misgivings. But I feel like our relationship, and the trust in it, she understands how seriously I take it.But nothing good could come from harming her.
"If I put something in the space between me and her, it would be very detrimental to me. So when I think, 'Oh, that person is attractive,' the next thought is, 'Yes, but if you ever did anything, you realise that would destroy your whole life.' There's that voice in my head now."
Brand, 43, married Gallacher in 2017. They also have two daughters Mabel and Peggy.