So there you have it: the cat is well and truly out of the bag.
To be fair, rumours that Anna and her 49-year-old cinematographer beau are getting hitched have been doing the rounds since last November, when the star was spotted sporting a huge sparkler on her ring finger as the couple took a stroll through LA.
And apparently, getting a look at the shiny new bling was how Allison found out the news, too!
"I didn’t know he was going to propose, but I saw the ring one day," she told Us.
"I went into her room to work on lines [for the show], and then I was like, 'What is that ring on your finger?'… I think she was waiting for everyone to notice. 'Oh, that’s it,' and then … yeah, it was fun."
The news comes nearly two years after she and Michael — who's worked on films such as Ted and You Don't Mess With the Zohan — met on the set of the hit movie Overboard. The loved-up couple confirmed they were dating in October 2017 and were spotted packing on the PDA during a romantic vacation in Venice, Italy a month later.
"Michael had his hand on Anna's back and she rested her head on his shoulder," a source told E! News at the time. "They giggled together and made a few jokes as they enjoyed the ride and took in all of the scenery."
"Anna and I are sad to announce we are legally separating," Chris shared on his Facebook page at the time, in a post signed by both the stars.
"We tried hard for a long time, and we’re really disappointed. Our son has two parents who love him very much and for his sake we want to keep this situation as private as possible moving forward."