Plant ID please

[Wontsomebodyplsthinkofthecats]

Hi I've got this pink flowering plant in one of my boarders and I'm pretty sure I didn't plant it. I've tried to ID it with an app but haven't found a match. Does anyone know what it is please?

It looks like a bladder campion / something in the silene family. Lots of different types. Some are sold for actual money in nurseries, so if you like it, keep it!

It looks like a wild flower, maybe pink purslane.

red campion, Silene dioica. Not bladder campion which has white flowers and an inflated calyx. And not pink purslane, whose petals are more rectangular rather than the heart-shaped of campion, gibing a different look to the flower