"He cheated on her. Game over," an inside source tells the magazine.
The two were engaged in October 2013 on Ciara's birthday. This news comes just three months after the birth of their son, Future Zahir Wilburn. It's unclear if they're calling off the engagement temporarily while they work things out, or if this is a permanent split. Regardless of the long-term plan, another source said Ciara's keeping her mind on what's important.
"She's devastated. Ciara's focus now is the baby." (Us Weekly)