No interactions present.
I don't think you can be sure this is Silene latifolia from the photo. There is more white Silene dioica around than people appreciate. Always be suspitous of plants growing in grassy banks and hedgerows. Silene latifolia is a weed of cultivated and disturbed land.
I've found white forms of Silene x hampeana (identified from the fruits). I haven't found white forms of Silene dioica, but I could have overlooked them.
Lat/Lng: 55.263, -1.5699
OS grid ref: NZ274966