A few days ago, the the rocker and the actress, who split this past summer after three years together, were out and about together in New York City.
Neither star has confirmed whether or not they're back together, but it's clear there's still affection there.
Last month, Mellencamp, 63, gushed about Ryan, 52.
"Meg is an angel," he said during an appearance on Howard Stern's Sirius radio show. "She was just an angel sent to me at the right time and we tried to have a relationship for three years long distance, and we'll see what happens."