The Saturdays singer is married to England rugby player Ben Foden and she insists his most annoying habit is when he uses the floor of their house as a laundry bin.
She moaned: “We don't have massive arguments any more. But I get annoyed when I see clothes of his on the floor or he hasn't made the bed. If you don't know what I'm like, you might think I'm being aggressive, but he just laughs at me now.”
Una – who has an 11-month-old daughter, Aoife, with Ben – likes to keep her spouse organised so she makes him lists of chores to do when she goes out, however, he doesn’t always follow her instructions.
She told Britain's OK! magazine: “I make lists. I say, 'When I get back you must make sure the bins are left out, because you know they're only collected every two weeks.' I come back and the bin is overflowing. The Christmas tree is still in the back, it's an eyesore.
"I can't relax until after my lists are done!”
Ben is definitely not a fan of his wife’s lists of jobs but he appreciates her busy demeanour is a good balance to his laid back attitude to life.
He said: “I give her a bit of grief because she's so stressed about everything. We'll have a day off but before we relax she wants to do everything off her mental list. She's very organised and motivated, whereas I'm lazy and messy! Chalk and cheese.”