They had met for the first time at a party at Wainuioru on that date in 2010, a meeting which was cut short when Poulsen had to leave in the early hours of the next morning to ready himself for rugby later that day.
"Rugby has always been a huge part of my life, I guess you could say I'm a bit of a fanatic," Poulsen said. "It's probably just as well Lou got a taste of it so early, it's made my life a lot easier, that's for sure."
As it happens it was Lou who decided the couple should tie the knot during the halftime break in Saturday's match. They had decided on June 19 for the big day and when informed by her husband-to-be that it would clash with his rugby commitments she simply said not to worry, she would come to him. "We thought why not do it at halftime," Poulsen said.
"We only told a few mates so it was a bit of surprise for most people.
"We made sure the JP knew we only had 15 minutes or so to get it over, there was a rugby game to watch."
Poulsen admits, however, that even though they got married on a rugby ground he's not holding his breath about his wife sharing his great passion for the sport. "I think about the only thing she relates to in rugby is Daniel Carter ... I reckon he might have been the first choice for husband had he been available."
For Robertson, the marriage ceremony did create one problem, how to keep his players focused during the halftime team talk.
"I had them face in the opposite direction to the goalposts where everything was happening ... it seemed to work okay."