Marsh began dating "Hollyoaks" actor Jamie Lomas since July 2008. She and Lomas said they were expecting a baby due in the summer of 2009. On 12 February 2009, Marsh said their son, Archie Jay Lomas, was born 18 weeks early on 11 February. He died moments after birth. Marsh and Lomas ended their relationship on 9 October 2009. The couple got back together the following month as Marsh won Mother of the Year 2009. On Christmas Day 2009 Lomas proposed to Marsh and she accepted.