Grace, 31, took to Instagram to share the news with her fans, reported Us magazine.
"The minute I heard my first love story, I started looking for you, not knowing how blind that was. Lovers do not finally meet somewhere. They are in each other all along," she captioned a snap of herself in Cooke's embrace, flashing her engagement ring.
"Rumi Matthew Cooke & I are so excited to share our engagement with you guys! I could not feel more grateful to share my life with this incredible man," she wrote.