"Engaged", Ryan wrote in the caption of the quirky announcement post, featuring a hand-drawn cartoon of her and Mellencamp holding hands. They then rekindled their romance and were linked again a year ago.
Rumors swirled that the couple was making it official after Ryan was spotted out on Halloween wearing a sparkling ring on a certain finger.
Last March, Mellencamp said on Howard Stern's SiriusXM radio show that it was unlikely he and Ryan would reconcile. "She hates me to death".
He continued, "I think it's because I'm a child. I loved Meg Ryan", he said at the time. I throw fits, I gripe, I complain.
Primera ecuatoriana elegida al Congreso de EEUU
La ecuatoriana Debbie Mucarsel-Powell (D) gana escaño al congreso por el distrito 26 del estado de la Florida . Mucarsel-Powell se enfrentó a Carlos Curbelo , que se mantenía en este escaño desde 2014.
Throughout the years, Meg Ryan has played the leading lady role alongside some of Hollywood's hottest actors in movies such as When Harry Met Sally, You've Got Mail and Sleepless in Seattle.
In July, a source told ET that the two were together again.
Ryan has a son named Jack with Quaid, as well as a daughter, Daisy, whom she adopted after her divorce.