Amy Smart & Carter Oosterhouse engage!

Amy Smart is getting married.

The Just Friends actress has gotten engaged to HGTV’s Carter Oosterhouse.

Speaking to Us Weekly magazine at an Earth Lovers in Celebration of Earth Day event in New York on Thursday, Smart called Oosterhouse, 34, her “fiance” and said the  engagement is “very new” and “very exciting.”

The stars met by chance at a green-charity event in November 2010.

“He’s an eco-carpenter; Amy drives a hybrid and is the greenest girl I know. They are perfect for each other,” a source added.

“Here are two wholesome, kind, sweet Midwestern types. Neither has sold out and gone Hollywood.

“The proposal happened four days ago. He proposed in L.A. It was a very big surprise but she is thrilled and is very excited. They are a good pair and very in sync with each other.”