It seems as if Cardi B and Offset have been married for almost a whole year. Which explains why Offset has been calling Cardi is wife more often.
TMZ found their marriage certificate in Fulton County, CA in September. You can see the certificate here.
On Sunday, at the BET Awards, the Migos won for Best Group and during their speech, Offset came up to the mic and said, "I thank my wife, you should thank yours."