No word on when the wedding will take place: Ed's got a world stadium tour planned for this year.
The 25-year-old singer is close friends with Seaborn having attended school together in Suffolk.
According to Ed Sheeran himself the engagement happened late previous year.
Ed said: "You know, he's only met Cherry once and I didn't introduce her..."
The "Shape of You" singer and 24-year-old Seaborn, who works as a risk advisory consultant, have known each other since they were kids, but only began dating in 2015.
Apparently his crush started then, so these guys are very much childhood sweethearts.
And while Cherry moved to North Carolina to go to Duke University, she relocated back to the United Kingdom in December 2016 to be with the singer. The "Shape of You" singer, made a stop in NY and was able to see Seaborn since she worked on Wall Street.
Swift even went so far as to wish the couple a special anniversary wish at her party the following year.
The 26-year-old also revealed that he never thought he would end up with someone from high school. "ThatÂ´s not reality. One day this will end", he told The Sunday Times newspaper past year.
"I'm ready, let's go - tour bus babies, little fat, chubby babies that just walk around".