Sharing her husband with the world was tough for Terri. I'm not going to say that they had a fairytale romance, but they were great mates, deeply in love. There hasn't been much in their life that hasn't hit television.

America has grown up with their family. Two years ago, we did the Macy's Thanksgiving Day Parade in New York. Animal Planet had a huge float with a big crocodile and Steve stood on top. It was bitterly cold; he was in his shorts for three-and-a-half hours. In front of the crowd were big burly New York cops. As soon as they heard people yelling, "Crikey! We love you Steve!" the cops turned round and, to a man, took a shot of him with their mobile phones. Afterwards I said, "Wasn't that an honour for a boy from Beerwah to end up on Fifth Avenue with 2 to 3 million yelling how much they love you." He reflected on it. "Yeah," he said. "But I was scared I was going to have to pee."

We'd get into trouble when things were going really good. In January 2004, I was on a cruise ship off the coast of Mexico when I saw the baby Bob incident on CNN. Steve was really hurt by that. He would not apologise. If he believed in something, he'd stand by it. Steve was one of the best dads. He'd have "Bob time" and "Bindi time" and we'd work our life around that. Terri would say she's got three kids and he was one of them. As a family, they spent the whole of August camping out in North Queensland where he was doing research. He said it was the best month of his life.

I'm at peace that he died at a happy point. The saddest thing is he had everything to live for. When he was brought back to Croc One, I realised what was going on. It's a horrible thing to re-live. I find it really hard at night, I can't get it out of my brain. This week has been a roller-coaster, with ups and downs. That's what it was like for 15 years ... Now I've got to do it without Steve. I don't know how. [He sobs.] It's going to be hard, but I'll do it. I'm fortunate to have had such a friendship and the legacy of years of amazing memories.