Kym Marsh has said she's "ecstatic" as her son David Cunliffe has got engaged to his girlfriend Courtney, after she wed Scott Ratcliff last month.The singer's son popped the question on his girlfriend Courtney's birthday as the couple stayed at the five star hotel in London, Canary Riverside. Former Hear'Say singer Kym, 45, shared the happy family news with fans as she posted a photo of her son with her daughter-in-law-to-be smiling while flashing the stunning halo engagement ring.