Her good pal Katie-Jane Goldin was over the moon after her other half Barry Scallan popped the question this month.
However, Herald columnist Rosanna explained how she's not anticipating anything similar from her live-in boyfriend while the pair are over in Mauritius.
She and Wes have been dating for over six years and moved into a house together in Foxrock last year -- and she confirmed that tying the knot was on the cards for them.
"I'm thrilled for Katie Jane and Barry, they're a great couple. As for us, if Wes has anything planned, he's keeping it very well hidden," she joked.
"Of course we've spoken about marriage, but I'm leaving it up to him for now."
Top model Rosanna has jetted off with Wes and her entire for their annual trip away to the sun-kissed holiday destination.
The gang fly over there every year and always stay at the luxurious Le Saint Geran Hotel on the north east coast of the island.
"We'll be there in time to celebrate New Year's Eve on the beach and we're all really looking forward to a bit of sunshine, relaxation and quality time spent together," she continued.
The AR agency model also said she won't be making any New Year's resolutions this year as she doesn't believe in them.
"If I want to change or give up something, I prefer to just do it immediately, rather than wait for January 1," she said.
Rosanna and her family, including dad Chris de Burgh, mum Diane and two brothers Michael and Hubie, have spent a lot of time together in Mauritius.
It was also the place she chose to shoot her now infamous spread for Playboy Germany last January, as she showed off her toned curves in her first topless shoot.