I’ve been recommended the Crown in Southwold for accommodation and food, although you have to wander 100m down to the Nelson for sea views from the pub. Not cheap either, but definately intimate.
You could get to West Wales in about 4 hours. There are some gorgeous coves around though unfortunately I can’t recommend anywhere in particular as we usually camp. But Llangrannog, New Quay, Aberdovey and up to Morfa Nefyn and Anglesey will have lots of options. The St Brides hotel in Saundersfoot does good food and has the views.
Or you could get to the North York Moors coast in less than 3 hours. Staithes, Robin Hood’s Bay and Runswick Bay are all very picturesque and romantic while Whitby makes a nice day out.