No interactions present.
I think you are probably right - but it is not enough for an agreement. One pic and none of the larva is not enough
There are a good number of miners in Campions http://www.bladmineerders.nl/plantenf/pfcaryophyllaceae/silene.htm
I am here because I checked all before posting my own.
See the trouble I went to http://www.ispotnature.org/node/810845
Lat/Lng: 50.9767, -3.2202
OS grid ref: ST144204