"It's known that he is pretty happy."
Aitken, from Gisborne, spent six months working as a nanny in France after completing a health science degree. The couple kept in touch via Skype while Dagg dealt with long-term injury.
Israel's grandfather Pat Dagg, who played rugby for Otago and Hawke's Bay, said Aitken helped keep Dagg's feet on the ground.
"They seem to be happy in each other's company."
The couple spurned women's magazines but agreed to an interview with a Gisborne magazine.
Daisy told BeachLife she didn't want to be caught up in the Wag lifestyle.
"Israel's the famous one, I haven't done anything yet," she said.
Dagg's mum said the couple enjoyed fishing and waterskiing together.
"Once [the Rugby World Cup] is all over they might look at taking off somewhere and going fishing, a bit of quiet time."