The Ritz Carlton in Half Moon Bay is an amazing spot. There is a great walking path along the water that leads down to the beach… I have spent some good time down there reflecting with just me and the waves… How about keeping dinner a little light and then taking a walk and getting to some of the tough topics. Let her know you care and want to know how the relationship is affecting her. Ask her what she needs to get out of the relationship and make sure you can provide those things. If you can’t, than maybe it’s time to take a big step back until you can.
Good luck!