The former Spice Girl was admitted to hospital suffering from a mystery illness and missed the first half of the British reality TV show's finale, reported Daily Express.
After receiving a barrage of comments on social media, Belafonte tweeted, "I don't usually respond to Twitter msgs (messages) but I will respond to comments of (my marriage in trouble) which I think are quite disgusting (and) untrue!...
"Mel was very ill a bunch of doctors helped her get better
Brown did not reveal the nature of her illness during her comeback on the show.