Ramona at a Super Bowl kickoff party
isn't wasting anytime moving on from her broken marriage to husband of 22 years, Mario. She was spotted out without her wedding ring on Friday.
The Real Housewives of New York City
star, who filed for divorce
earlier this week after learning of her husband's infidelity
, was seen walking her dog, Coco, near her Manhattan home. She was talking on the phone and had removed the glove from her left hand, revealing the absence of her wedding ring, which was also conspicuously absent at a pre-Super Bowl party
A friend of the 57-year-old tells
PEOPLE that Singer is strong and "will survive" this heartbreak, and Singer Tweeted a message on Friday that signaled her determination to move on. "We can't be afraid of change," she wrote
Quoting C. JoyBell C., she continued, "You may feel very secure in the pond that you are in, but if you never venture out of it, you will never know that there is such a thing as an ocean, a sea. Holding onto something that is good for you now, may be the very reason why you don't have something better."
"Ramona was shocked to learn that her husband was actually seeing someone," her friend tells PEOPLE. "Of course it hurts, but Ramona is like dynamite."