The Real Housewives of Beverly Hills star marked the one-year anniversary of Brinson's death with a heartfelt Instagram post on Tuesday.
"Missing You ❤ today Monty My Best Friend, I love you with all my heart & soul," Richards captioned a throwback pic of her and Brinson. "I cherish each & every memory we shared. I am definitely the most blessed girl in world to have had you in my life! I still feel your Love, Strength & Courage from above.?? Thank you for choosing me. I love you always & forever."
Brinson passed away last January, following a long battle with lung cancer. He was 58.
Richards and Brinson wed in 1985, and welcomed their daughter Brooke in 1986. The couple split in 1988, but despite the short marriage, they remained close friends.
The 52-year-old mother of four revealed her final words to Brinson in an emotional interview
with ET last year.
"I said, 'I love you,' and then I felt him just kind of leave, and it was shocking," she shared, two months after Brinson passed away. "I just didn't expect it."
See more from Richards' ET interview below.