Television star Rachel Riley has reportedly split from her husband of 15 months. According to The Sun newspaper her other half, Jamie Gilbert, and their entire family are devastated by the news. “He has no idea where this has come from,” a source revealed. “Rachel just told him they had grown apart... They are separated.” The couple, who met at Oxford University eight years ago, tied the knot last summer and have a home in Essex together. Maths genius Rachel rose to fame on Countdown. She now presents The Gadget Show on Channel 5 and participated in the latest series of Strictly Come Dancing. Rachel with her former dance partner Pasha Kovalev (pic via Twitter).