Teen Mom star Farrah Abraham was shocked to learn that the grandmother of her infant daughter Sophia secretly met her and held her last summer."I was surprised, I felt so betrayed," Farrah said of Stormie Clark, who is estranged from the Teen Mom, but who has worked tirelessly to see Sophia.Farrah Abraham hasn't pursued a relationship with Clark since she never approved of her son, the late Derek Underwood, dating her in the first place.Farrah Abraham is an embattled Teen Mom, but she's a fighter.Underwood tragically passed away in a car accident two months before Sophia was born in 2009. Since then, Clark and Abraham have been at odds.But Clark...