Earlier this year Lily, 30, allegedly signed up to app Tinder, which shows all compatible users looking for a date nearby.
Now it's been claimed that the Smile singer – who married Sam in 2011 – is a member of Raya, an upmarket version of Tinder.
A source told The Sun: "Raya is a small and very exclusive site, so it was impossible to miss Lily. It has certainly raised eyebrows in the industry."
Lily and Sam have only been spotted together a handful of times this year, most recently at an Ashes cricket even six weeks ago.
And, to make matters worse, even Lily's friends are confused about her relationship status.
Rapper Lethal Bizzle recently told the Mirror: "She's a real cool girl, I know her from back in the day.
"Is she still married? I thought she was single." Awkward.
However Lily recently addressed , insisting she and Sam, who have two daughters together, are still together.
A spokesperson for her said: "There's no change, she and Sam are very much married."
It's been alleged that Sam and Lily have clashed over where to settle and raise the children, with her favouring Los Angeles but him needing to be in London for work.