The LA-based TV presenter and Irish comedian Patrick - who had been pals for years - married in September in a secret ceremony in Rome.
Cat said of the festive season: "I will be going back home to my mum and dad and then we're going to Ireland too. Then we'll go somewhere else for New Year - I don't know where we're going yet, but we'll be somewhere else."
The fashion-loving So You Think You Can Dance host attended jeweller Bulgari's induction into the Rodeo Drive Walk Of Style in Los Angeles - and admitted she gets scared wearing valuable borrowed gems.
"I get slightly terrified because I'm really clumsy and I'm not very good at being a girl in general, so when you're walking around with millions of dollars of gems and diamonds it can be a little bit overbearing," Cat confessed.
"But Bulgari are so good about it, they're like, 'Oh, it's insured, you're fine, don't worry.' I've never lost anything - touch wood - just yet but you just can't say no, the pressure of having to wear them is completely outweighed by just how beautiful they are."