Flay moved out of their New York City apartment several weeks ago after a year and a half of a tumultuous relationship.
The two reportedly didn't spend their 10th anniversary together. While March remained in New York, Flay was down in Florida for a wine festival.
This is Flay's third marriage. He was previously married to Debra Ponzek from 1991 to 1993, and later married TV personality Kate Connelly in 1995.
They have no children together. Flay has one child from a previous marriage.