The news comes after Ryan and Mellencamp, 67, rekindled their romance in May 2017.
But according to PEOPLE, it was the long distance that tore the couple apart. In March of last year, Mellencamp went on Howard Stern's SiriusXM radio show and implied that there was no way that he would ever have a shot at getting back with the 55-year-old actress.
This isn't the first time walking down the aisle for either Ryan or Mellencamp.
Meg was seen out and about this week, sporting what appeared to be an engagement ring. 'I loved Meg Ryan. "And I can't blame her".
In July, a source told ET that the two were together again. She had also previously been linked to Russell Crowe.
The Cliffsofmoher euthanased on track after Melbourne Cup
Equine Veterinarians Australia spokesman Ian Fulton, who was in attendance at Flemington, said Moore's actions should be praised. The Melbourne Cup is a popular annual horse race in Australia with large sums of money being awarded to winning horses.
On Thursday, Ryan posted an illustration to Instagram captioned, "ENGAGED!"
Throwback: Ryan's union to Mellencamp will mark her second marriage. The pair even caught a New York Knicks basketball game with her son Jack and Mellencamp's 24-year-old son Hud from his marriage to Irwin. The couple share daughters Teddi Jo, 37, and Justice, 33.
This will be the fourth marriage for Hurts So Good and Jack & Diane rocker Mellencamp, who was previously married to Elaine Irwin, Victoria Granucci and Priscilla Esterline.
On-again, off-again: John Mellencamp and Meg Ryan in 2013.