Cardi B's romantic life has a new chapter, and it's full of questions regarding Stefon Diggs' paternity suits and legal filings. As the couple prepares to welcome their first child together, the NFL player is facing a lawsuit to determine if he is the father of a five-month-old daughter. Source: Elsa / Getty As BOSSIP previously reported, Cardi B and Stefon Diggs have had a very public relationship, with the couple going Instagram official just a few months ago.