His first marriage ended in divorce.
Dr. Abbott was previously in a committed relationship for 61 years to Dr. Peter Guggenheim, whom he had met in medical school. They were legally married in Toronto in 2007
After Dr. Guggenheim’s death in 2012, Dr. Abbott was encouraged by a friend to join Match.com, and in September 2013, he got onto the dating app.
“During Peter’s chronic illness and subsequent death, I continued my psychiatric practice but curtailed my equine activities,” said Dr. Abbott, who bred Hanoverian dressage horses at his farm in Warwick.
Dr. Dabbs was also recovering emotionally after the end of a 16-year relationship with a younger man, and had decided to try online dating.
“I was hoping to meet a man closer to my age and with similar interests and background,” he said.
In January 2014, Dr. Abbott and Dr. Dabbs found each other’s profile online and were thrilled to see that each shared a love of theater, restaurants, travel and art. (Dr. Abbott and Dr. Guggenheim were renowned art collectors.)
“Although we had both been in practice in Manhattan and knew some of the same colleagues, we had never met or heard of each other,” Dr. Dabbs said.
That same month, they went on a date to a restaurant and later made their way to a hotel bar in Midtown, where Dr. Dabbs said they were “propositioned by a working girl in a black mink coat.”
“I told her we were lovers,” Dr. Abbott said, laughing.
From there, they began “some old-fashioned dating, a movie here, a dinner there,” as Dr. Dabbs put it. By August, they were spending weekends together amid the construction noise of new homes each had recently bought, Dr. Abbott’s in Ridgefield, and Dr. Dabbs’s in Old Saybrook, Conn.
But their relationship became complicated in February 2015, when Dr. Dabbs experienced a recurrence of cancer, which led to surgery at Memorial Sloan Kettering in New York, followed by recuperation at Dr. Abbott’s apartment in New York and at his home in Ridgefield.
By October 2015, Dr. Dabbs had been nursed back to health by Dr. Abbott, and they began spending more time together on trips to Florida and Puerto Rico, and in their respective homes.
“People may ask, ‘Why at the combined age of 171 years are you getting married?’” Dr. Dabbs said. “Like any couple who are in love, we want to make the public, legal and personal commitment to each other, as we desire to spend the future together till death…