Congratulations, Angela Kinsey!

The Office star announced her engagement to her long-time boyfriend by posting an adorable Throwback Thursday photo on Instagram.

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In the photo's caption, she describes how the proposal happened in a heartwarming message, "We were going out to dinner and my daughter said that first she wanted to show me the fort in the backyard that she and my boyfriend’s sons had been working on. She led me outside and there was a blanket by the pool and she said I had to sit on it."

"His sons brought me flowers and then he came around the corner with a ring. He had called my mom and asked for her blessing…that would have made my dad so happy," she continued.

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Lastly, she points out the significant meaning behind her emerald green ring, "The ring is an emerald…all three of our kids' birthstone."

Congratulations to the happy couple!