No interactions present.
If you zoom in on the 3rd pic, one of the emerging flowers has sepals visible beyond the bracteoles, so Hedge Bindweed ID looks good.
but it is not uncommon for the tips of the sepals of Calystegia silvatica to peep out beyond the bracteoles.
The bracetoles of Calystegia sepium are flat, don't overlap each other, are some times keeled, and are commonly shorter than the sepals, but sometimes as long as the sepals. Those of Calystegia silvatica are wrapped round the calyx, overlap each other, and are commonly keeled and inflated.
I've had a harder look at photo3, and I think I'll defer on this one.
Bracteoles apart, the bee in the shot (assuming it to be 10mm in length) would make the flower at least 60 mm across, which is too big
for Hedge Bindweed.
Lat/Lng: 54.24, -1.0518
OS grid ref: SE618831