Foster and McPhee were first linked together last May, and by December of 2017, they couldn't seem to keep their hands off each other during a PDA-packed trip to Paris, France. "And in the end he spared me", McPhee added.
Foster later shared his own photo of himself and McPhee sitting on a boat, with the caption simply reading, "Yup!"
McPhee's rep Leslie Sloane also confirmed the news.
McPhee's rep confirmed the news to ET Canada, telling us the couple, who are now enjoying a vacation on the Italian island of Capri, will indeed be getting married.
Germany's World Cup failure met with schadenfreude from German newspaper
Top stat: With nine goals scored in their three group games, Belgium are the top scorers in the competition. They were beaten by Sweden in their opening game and also lost to Mexico in their second group game.
David's daughters Sara and Erin were quick to use their famous dry wit and humor in the comments section of the picture announcing the engagement.
The 68-year-old music icon and the 34-year-old Scorpion star revealed on Tuesday that they'd gotten engaged. What did I miss?'.
And McPhee hasn't been shy about praising her beau. He was also married to singer-songwriter B.J. Cook, former model Rebecca Dyer and actress Linda Thompson.
We really, really like her, and we've known her for a really long time.
This will be Katharine's second marriage after she split from Nick Cokas in 2016.