The ex-Yankee ditched the Sunshine State and jetted to Connecticut as the Justice League star moved in.
Bennifer 2.0 made headlines when they were photographed together again at the singer's Miami home over the weekend.
A-Rod -- who is also a Miami resident -- swapped the sunshine for New England.
He surprisingly seemed in good spirits despite J Lo's reunion with Ben being splashed all over the tabloids.
A-Rod was greeted by fans as he made his way to ESPN's headquarters in Bristol, Connecticut to participate in the network's Sunday Night Baseball telecast.
Wearing a pair of Nike sweats and a zip-up black jacket, the star stopped to talk to fans and was seen signing autographs.
The former MLB player also gave a thumbs up to the cameras as paparazzi snapped away.
Meanwhile, his ex-fiancée looked quiet cozy and happy with Affleck.
The duo was caught out on the balcony and walking down the stairs together at J Lo's home.
The Hustler's actress flashed a coy smile as Affleck trailed behind her.
A-Rod is reportedly upset about how quickly J Lo moved on after ending their engagement in April, but you wouldn't be able to tell by his behavior over the weekend.
Weeks after revealing their breakup, Affleck was spotted sneaking out of the singer's Los Angeles home.
They were photographed days later in Montana together.
According to PEOPLE, "Jennifer was just in Los Angeles for a couple of days" last week.
"It's a tricky situation since they live so far from each other, but they both seem committed to making things work," the insider added.
While J Lo's life is wrapped up in Miami, Ben's roots and kids are in L.A.
Prior to their Bennifer reunion, Affleck was photographed being a doting dad to his 9-year-old son Samuel. on Friday.