"What a week: I became a cartoon character, did a Maxim shoot, and got engaged! Lol. Not bad, not bad. Thanks for all the congrats!!" the 25-year-old actress posted Saturday.
"The most wonderful man on this planet" she refers to in an earlier Tweet is none other than her boyfriend Kyle Martino, 29, a former MLS soccer player who is now a Fox Soccer Channel commentator. He is originally from Connecticut, and the couple now live together in California.
Amurri's rep also confirms the engagement, telling PEOPLE: "They just got engaged and both couldn't be happier."