Mercedes convinces Russ to continue with the wedding , but they separate after their honeymoon .
Mercedes has sex with Warren Fox ( Jamie Lomas ) on her hen night , which is exposed by Louise Summers ( Roxanne McKee ) at the wedding .
Mercedes convinces Russ to continue with the wedding , but Mercedes separate after Mercedes ' honeymoon .
Mercedes has sex with Warren Fox ( Jamie Lomas ) on her hen night , which is exposed by Louise Summers ( Roxanne McKee ) at the wedding .